Category Archives: Quantum Physics

Disturbing the Fermi Sea with Rydberg States – Physics

May 17, 2021• Physics 14, 74

A method that enables long-range interactions between fermions on a lattice allows atomic quantum simulations of exotic quantum many-body phenomena.

Currently, one of the best ways to model complex quantum systems is through atomic quantum simulations. Controlling interactions between atoms is key to such simulations, something that can be achieved in atomic lattices using the well-established Feshbach-resonance approach. While that approach can be used to vary the strength of short-range interactions between atoms, it does not carry over to long-range interactions, leaving some interesting quantum systems outside of the techniques scope. Elmer Guardado-Sanchez at Princeton University and colleagues have now shown that such long-range interactions can be controlled using Rydberg dressing in a lattice of lithium ( 6Li) atoms [1]. The teams demonstration opens up unprecedented opportunities for exploring systems that exhibit rich fermionic many-body physics.

In the Feshbach-resonance approach to interaction control, a variable magnetic field is used to tune the scattering dynamics of colliding atoms. The use of this technique has led to the experimental observation of the crossover between the Bose-Einstein-condensation (BEC) regimein which strongly interacting fermions form bosonic moleculesand the Bardeen-Cooper-Schrieffer (BCS) regimein which weakly interacting fermions form loosely bound Cooper pairs. Quantum phenomena that can be simulated using such interactions range from the electron correlations behind high-temperature superconductors to the quantum kinematics taking place in distant neutron stars. Despite this versatility, there remains an important class of systems beyond the reach of simulations based on local interactions. Those systems are ones composed of spinless fermions, which the Pauli exclusion principle forbids from sitting on top of one another, making local interactions largely irrelevant. Instead, it is the long-range interactions that must be controlled.

One way to engineer such long-range interactions between spinless atomic fermions is to excite the atoms to Rydberg states, in which an electron occupies a high orbital. This method has been proposed theoretically as a way to mediate correlated topological density waves within a fermionic system [2]. Guardado-Sanchez and colleagues now employ the technique experimentally, which they do with an ensemble of spinless, fermionic 6Li atoms.

The team cooled a dilute gas of 6Li atoms in an optical lattice to a quantum degenerate temperature, one where each atoms de Broglie wavelength becomes larger than the interatomic spacing. Unable to reach the ground state simultaneously (because of the Pauli exclusion principle), the atoms freeze one by one at the lowest momentum available, forming a Fermi sea (Fig. 1). In this sea state, the atoms barely interact, and there are both minimal thermal and minimal quantum fluctuations.

The teams next step was to use a laser to implement a Rydberg dressing scheme, which mixes the systems internal ground state with a highly excited Rydberg state. An atom in a Rydberg state exhibits a larger electric dipole moment than one in the ground state because of the greater distance between its ion core and its outermost electron. This dipole-moment enhancement produces an effective soft-core interaction between Rydberg-dressed atoms, meaning that the interaction strength remains roughly constant as the interparticle distance increases, before dropping off above a threshold length scale [24]. The researchers show that they can manipulate the strength and the range of this interaction by varying the intensity and frequency of the laser. Although the Rydberg-dressing-induced interaction is isotropic across the two-dimensional system, the motion (by quantum tunneling) of the fermions is restricted to one dimension. This limited freedom of motion hinders the infamous Rydberg-avalanching-loss process by which Rydberg atoms collide, gain kinetic energy, and escape the trap.

The long-range interaction and the consequent hopping motion of the fermions generate many-body excitationscommonly called quantum fluctuationson top of the Fermi sea. These collective quantum fluctuations can have tremendously rich features, yielding many kinds of quantum-correlated states of matter. The types of phenomena that arise in such a system of interacting fermions depend on the way in which the fermions pair up, or, more precisely, on the momenta of the participating fermions and the Cooper pairs that result. These momentum-dependent interactions, in turn, are governed largely by the range of the interaction relative to the lattice spacing. A soft-core interaction with a tunable length, such as that realized by Guardado-Sanchez and colleagues, could lead to abundant momentum-dependent behaviors, generating, for example, topological density waves [2] and chiral p+ip superfluidity [5]. Such p+ip superfluids support topological Majorana vortices and offer a plausible route toward realizing topological quantum computation.

Even more exotic and counterintuitive phenomena may arise when different pairing possibilities occur simultaneously. For example, although mean-field theories typically predict that superfluidity appears in the presence of purely attractive interactions, functional renormalization group calculations suggest that a complex combination of different fermion pairings should generate unconventional f-wave superfluidity even with atomic repulsion [6]. Guardado-Sanchez and colleagues have so far only demonstrated attractive interactions, but tuning from attraction to repulsion is experimentally feasible [7]. Interesting effects should also arise when the interaction strength completely dominates the kinetic energy, with the system then being driven toward a Wigner crystal or fractional quantum Hall state [8, 9].

In the teams experiment, with its lattice-hopping fermions, the dynamical aspects of the system are more easily observed than the quantum many-body equilibrium states. Uncovering how to probe such states in a nonequilibrium setting should stimulate future theoretical investigation. On the application side, as well as the above-mentioned potential for topological quantum computing, long-range interaction control is a key step toward performing quantum simulations of quantum chemistry problems. Such simulations represent one arena ripe for applications employing the so-called quantum advantage to solve problems that would be intractable using classical computers. One strength of the teams scheme in realizing applications is that, unlike previously developed Feshbach-resonance techniques, it is magnetic-field-free. This aspect provides extra freedom to integrate the technique with certain magnetic-field-sensitive cold-atom quantum technologies, such as artificial gauge fields.

Xiaopeng Li is professor of physics in the Physics Department of Fudan University, China, jointly employed by Shanghai Qi Zhi Institute. He is active in quantum information science and condensed-matter theories, with his primary research interests in exploiting the quantum computation power of various quantum simulation platforms. He received his Ph.D. in physics from the University of Pittsburgh in 2013 and joined Fudan University as a faculty member in 2016 after three years at the University of Maryland, supported by a Joint Quantum Institute theoretical postdoctoral fellowship. He has been a full professor since 2019.

Elmer Guardado-Sanchez, Benjamin M. Spar, Peter Schauss, Ron Belyansky, Jeremy T. Young, Przemyslaw Bienias, Alexey V. Gorshkov, Thomas Iadecola, and Waseem S. Bakr

Phys. Rev. X 11, 021036 (2021)

Published May 17, 2021

A new experimental method based on adsorption can indicate whether a material is a Mott insulator or a common insulator. Read More

Go here to read the rest:

Disturbing the Fermi Sea with Rydberg States - Physics

Physicists push limits of Heisenberg Uncertainty Principle – Big Think

Recently published research pushes the boundaries of key concepts in quantum mechanics. Studies from two different teams used tiny drums to show that quantum entanglement, an effect generally linked to subatomic particles, can also be applied to much larger macroscopic systems. One of the teams also claims to have found a way to evade the Heisenberg uncertainty principle.

One question that the scientists were hoping to answer pertained to whether larger systems can exhibit quantum entanglement in the same way as microscopic ones. Quantum mechanics proposes that two objects can become "entangled," whereby the properties of one object, such as position or velocity, can become connected to those of the other.

An experiment performed at the U.S. National Institute of Standards and Technology in Boulder, Colorado, led by physicist Shlomi Kotler and his colleagues, showed that a pair of vibrating aluminum membranes, each about 10 micrometers long, can be made to vibrate in sync, in such a way that they can be described to be quantum entangled. Kotler's team amplified the signal from their devices to "see" the entanglement much more clearly. Measuring their position and velocities returned the same numbers, indicating that they were indeed entangled.

Tiny aluminium membranes used by Kotler's team.Credit: Florent Lecoq and Shlomi Kotler/NIST

Another experiment with quantum drums each one-fifth the width of a human hair by a team led by Prof. Mika Sillanp at Aalto University in Finland, attempted to find what happens in the area between quantum and non-quantum behavior. Like the other researchers, they also achieved quantum entanglement for larger objects, but they also made a fascinating inquiry into getting around the Heisenberg uncertainty principle.

The team's theoretical model was developed by Dr. Matt Woolley of the University of New South Wales. Photons in the microwave frequency were employed to create a synchronized vibrating pattern as well as to gauge the positions of the drums. The scientists managed to make the drums vibrate in opposite phases to each other, achieving "collective quantum motion."

The study's lead author, Dr. Laure Mercier de Lepinay, said: "In this situation, the quantum uncertainty of the drums' motion is canceled if the two drums are treated as one quantum-mechanical entity."

This effect allowed the team to measure both the positions and the momentum of the virtual drumheads at the same time. "One of the drums responds to all the forces of the other drum in the opposing way, kind of with a negative mass," Sillanp explained.

Theoretically, this should not be possible under the Heisenberg uncertainty principle, one of the most well-known tenets of quantum mechanics. Proposed in the 1920s by Werner Heisenberg, the principle generally says that when dealing with the quantum world, where particles also act like waves, there's an inherent uncertainty in measuring both the position and the momentum of a particle at the same time. The more precisely you measure one variable, the more uncertainty in the measurement of the other. In other words, it is not possible to simultaneously pinpoint the exact values of the particle's position and momentum.

Heisenberg's Uncertainty Principle Explained. Credit: Veritasium / Youtube.com

Big Think contributor astrophysicist Adam Frank, known for the 13.8 podcast, called this "a really fascinating paper as it shows that it's possible to make larger entangled systems which behave like a single quantum object. But because we're looking at a single quantum object, the measurement doesn't really seem to me to be 'getting around' the uncertainty principle, as we know that in entangled systems an observation of one part constrains the behavior of other parts."

Ethan Siegel, also an astrophysicist, commented, "The main achievement of this latest work is that they have created a macroscopic system where two components are successfully quantum mechanically entangled across large length scales and with large masses. But there is no fundamental evasion of the Heisenberg uncertainty principle here; each individual component is exactly as uncertain as the rules of quantum physics predicts. While it's important to explore the relationship between quantum entanglement and the different components of the systems, including what happens when you treat both components together as a single system, nothing that's been demonstrated in this research negates Heisenberg's most important contribution to physics."

Read the original here:

Physicists push limits of Heisenberg Uncertainty Principle - Big Think

Can A Patent Violate The Laws Of Chemistry And Physics? – JD Supra

Quick answer: no!

The Federal Circuit Court of Appeals recently tangled with a patent application for an invention that did not have scientific support. The court affirmed a decision of the Patent Trial and Appeal Board rejecting a patent application on these grounds. While this is not a common occurrence, in this case, its an easy conclusion to reach.

In In re Huping Hu, 2021 U.S. App. LEXIS 7776, the inventors applied for patents for inventions related to quantum entanglement. According to the inventors, quantum entanglement is quantum spins of photons, electrons and nuclei. The inventors explained that quantum spins of photons, electrons and nuclei have now been successfully entangled in various ways for purposes of quantum computation and communication. The inventors said that quantum entanglement is a phenomenon that happens if particles, such as photons and electrons, become linked, and, when separated, the mechanical states of the molecules are still linked such that if the state of one particle is changed, the linked particle is affected. The PTO explained the inventors method as using quantum entanglement to change the characteristics of one substance via the manipulation of a completely physically separate substance. The PTO did not dispute the existence of quantum entanglement, but said that the phenomenon has been seen in very specific conditions for only a fraction of a second.

The inventors claimed that they had developed quantum entanglement into technologies that could be used in communications, engineering, health, medicine, and recreation. They filed four applications for methods and apparatus to produce or use quantum entanglement. One of the claims was directed to a method of producing a non-local effect in a target substance through manipulating an originating substance and detecting said nonlocal effect and included the steps of selecting a substance and letting said substance sit. Another claim was directed to a method of using general anesthesia by applying magnetic pulses to the brain while placing the anesthetic in a container outside the body. The PTAB commented that this claim was directing music toward the brain through a container of that anesthetic. I dont know about you, but Id rather not have surgery with general anesthesia outside my body!

Not surprisingly, the patent examiners rejected the claims of the four applications on several grounds. First, the examiners rejected claims as inoperative under 35 U.S.C 101, stating that the claims were not credible and therefore could not meet the utility requirement of 101. The patent examiners also rejected claims as not enabled and lacking written description on the grounds that the claimed invention was incapable of functioning as claimed. One very thorough examiner said that the claims violated the first law of thermodynamics, basic laws of chemistry, classical laws of physics, and the principle of conservation of mass.

The PTAB affirmed the examiners rejections. The PTAB found that the claims did not satisfy 112; they were indefinite, lacked written description, and were not enabled. The PTAB explained that the claims were not enabled due to the absence of any known scientific principles explaining how [applicants] invention could possibly operate in this manner, the absence of any cogent explanation in [applicants] specification regarding the general principles or mechanisms causing this to occur, and the absence of any verifiable test data reasonably attributable to the reported result The PTAB also affirmed the rejections under 101, finding that the claimed inventions were directed to a natural phenomenon, which is not patent-eligible subject matter.

As would be expected, the Federal Circuit affirmed the PTABs decision. On appeal, the applicants argued that the PTO had the burden of establishing unpatentability, and that the examiners and the PTAB had erroneously relied on skepticism and ignorance and had not considered the evidence and the prior art. The court agreed that the burden rested with the PTO, but said that concepts that strain scientific principles are properly held to a heightened standard, typically measured by reproducibility of results. The court compared this invention to inventions for perpetual motion machines and cold fusion. There was no scientific support for the invention, and the data was not sufficient to support the claims.

Continued here:

Can A Patent Violate The Laws Of Chemistry And Physics? - JD Supra

A wobbling muon could unlock mysteries of the universe – Vox.com

Its an exciting time in particle physics. The results of a new experiment out of Fermilab in Illinois involving a subatomic particle wobbling weirdly could lead to new ways of understanding our universe.

To understand why physicists are so excited, consider the ambitious task theyve set for themselves: decoding the fundamental building blocks of everything in the universe. For decades, theyve been trying to do that by building a big, overarching theory known as the standard model.

The standard model is like a glossary, describing all the building blocks of the universe that weve found so far: subatomic particles like electrons, neutrinos, and quarks that make up everything around us, and three of the four fundamental forces (electromagnetic, weak, and strong) that hold things together.

But, as Jessica Esquivel, a particle physicist at Fermilab, tells Vox, scientists suspect this model is incomplete.

One of the big reasons why we know its incomplete is because of gravity. We know it exists because apples fall from trees and Im not floating off my seat, Esquivel says. But they havent yet found a fundamental particle that conveys gravitys force, so its not in the standard model.

Esquivel says the model also doesnt explain two of the biggest mysteries in the universe: dark matter, an elusive substance that holds galaxies together, and dark energy, an even more poorly understood force that is accelerating the universes expansion. And since the overwhelming majority of the universe might be made up of dark matter and dark energy, thats a pretty big oversight.

The problem is, the standard model works really well on its own. It describes the matter and energy were most familiar with, and how it all works together, superbly. Yet, as physicists have tried to expand the model to account for gravity, dark matter, and dark energy, theyve always come up short.

Thats why Esquivel and the many other particle physicists weve spoken to are so excited about the results of a new experiment at Fermilab. It involves muons subatomic particles that are like electrons heavier, less stable cousins. This experiment might, finally, have confirmed a crack in the standard model for particle physicists to explore. Its possible that crack could lead them to find new, fundamental building blocks of nature.

Esquivel worked on the experiment, so we asked her to walk us through it for the Unexplainable podcast. What follows is a transcript of that conversation, edited for clarity and length.

What was this muon experiment?

So at Fermilab, we can create particle beams of muons a very, very intense beam. You can imagine it like a laser beam of particles. And we shoot them into detectors. And then by taking a super, super close measurement of those muons, we can use that as kind of a probe into physics beyond our standard model.

So how, exactly, does this muon experiment point to a hole in the model, or to a new particle to fill that gap?

So the muon g-2 experiment is actually taking a very precise measurement of this thing that we call the precession frequency. And what that means is that we shoot a whole bunch of muons into a very, very precise magnetic field and we watch them dance.

They dance?

Yeah! When muons go into a magnetic field, they precess, or they spin like a spinning top.

One of the really weird quantum-y, sci-fi things that happens is that when you are in a vacuum or an empty space, it actually isnt empty. Its filled with this roiling, bubbling sea of virtual particles that just pop in and out of existence whenever they want, spontaneously. So when we shoot muons into this vacuum, there are not just muons going around our magnet. These virtual particles are popping in and out and changing how the muon wobbles.

Wait, sorry ... what exactly are these virtual particles popping in and out?

So, virtual particles, I ... see them as like ghosts of actual particles. We have photons that kind of pop in and out and theyre just kind of like there, but not really there. I think a really good depiction of this, the weirdness of quantum mechanics, is Ant-Man. Theres this scene where he shrinks down to the quantum realm, and he gets stuck and everything is kind of like wibbly-wobbling and somethings there, but its really not there.

Thats kind of like what virtual particles are. Its just hints of particles that were used to seeing. But theyre not actually there. They just pop in and out and mess with things.

So quantum mechanics says that there are virtual particles, sort of like ghosts of particles we already know about in our standard model, popping in and out of existence. And theyre bumping into muons and making them wobble?

Yes. But again, theoretical physicists know this, and theyve come up with a really good theory of how the muon will change with regards to which particles are popping in and out. So we know specifically how every single one of these particles interacts with each other and within the magnetic field, and they build their theories based on what we already know what is in the standard model.

Got it. So even though there are these virtual ghost particles popping in and out, as long as theyre versions of particles we know, then physicists can predict exactly how the muons are going to wobble. So were the predictions off?

So what we just unveiled is that precise measurement doesnt align with the theoretical predictions of how the muons are supposed to wobble in a magnetic field. It wobbled differently.

And the idea is that you have no idea whats making it do that extra wobble, so it might be something that hasnt been discovered yet? Something outside the standard model?

Yeah, exactly. Its not considered new physics yet because we as physicists give ourselves a very high bar to reach before we say something is potentially new physics. And thats 5 sigma [a measure of the probability that this finding wasnt a statistical error or a random accident.] And right now, were at 4.2 sigma. But its pretty exciting.

So if it clears that bar, would this break the standard model? Because Ive seen that framing in a bunch of headlines.

No, I dont think I would say the standard model is broken. I mean, weve known for a long time that its missing stuff. So its not that whats there doesnt work as its supposed to work.

Its just that were adding more stuff to the standard model, potentially. Just like back in the day when scientists were adding more elements to the periodic table ... even back then, they had spots where they knew an element should go, but they hadnt been able to see it yet. Thats essentially where were at now. We know we have the standard model, but were missing things. So we have holes that were trying to fill.

How exciting does all of this feel?

I think its like a career-defining moment. Its a once-in-a-lifetime. Were chasing new physics and were so close, we can taste it.

What Im studying isnt in any textbook that Ive read or peeked through before, and the fact that the work that Im doing could potentially be in textbooks in the future ... that people can be learning about the dark matter particle that g-2 had a role in finding ... it gives me chills just thinking about it!

See the rest here:

A wobbling muon could unlock mysteries of the universe - Vox.com

The Worldwide Quantum Technology Industry will Reach $31.57 Billion by 2026 – North America to be the Biggest Region – PRNewswire

DUBLIN, May 18, 2021 /PRNewswire/ -- The "Quantum Technology Market by Computing, Communications, Imaging, Security, Sensing, Modeling and Simulation 2021 - 2026" report has been added to ResearchAndMarkets.com's offering.

This report provides a comprehensive analysis of the quantum technology market. It assesses companies/organizations focused on quantum technology including R&D efforts and potential gaming-changing quantum tech-enabled solutions. The report evaluates the impact of quantum technology upon other major technologies and solution areas including AI, Edge Computing, Blockchain, IoT, and Big Data Analytics. The report provides an analysis of quantum technology investment, R&D, and prototyping by region and within each major country globally.

The report also provides global and regional forecasts as well as the outlook for quantum technology's impact on embedded hardware, software, applications, and services from 2021 to 2026. The report provides conclusions and recommendations for a wide range of industries and commercial beneficiaries including semiconductor companies, communications providers, high-speed computing companies, artificial intelligence vendors, and more.

Select Report Findings:

Much more than only computing, the quantum technology market provides a foundation for improving all digital communications, applications, content, and commerce. In the realm of communications, quantum technology will influence everything from encryption to the way that signals are passed from point A to point B. While currently in the R&D phase, networked quantum information and communications technology (ICT) is anticipated to become a commercial reality that will represent nothing less than a revolution for virtually every aspect of ICT.

However, there will be a need to integrate the ICT supply chain with quantum technologies in a manner that does not attempt to replace every aspect of classical computing but instead leverages a hybrid computational framework. Traditional High-Performance Computing (HPC) will continue to be used for many existing problems for the foreseeable future, while quantum technologies will be used for encrypting communications, signaling, and will be the underlying basis in the future for all commerce transactions. This does not mean that quantum encryption will replace Blockchain, but rather provide improved encryption for blockchain technology.

The quantum technology market will be a substantial enabler of dramatically improved sensing and instrumentation. For example, gravity sensors may be made significantly more precise through quantum sensing. Quantum electromagnetic sensing provides the ability to detect minute differences in the electromagnetic field. This will provide a wide-ranging number of applications, such as within the healthcare arena wherein quantum electromagnetic sensing will provide the ability to provide significantly improved mapping of vital organs. Quantum sensing will also have applications across a wide range of other industries such as transportation wherein there is the potential for substantially improved safety, especially for self-driving vehicles.

Commercial applications for the quantum imaging market are potentially wide-ranging including exploration, monitoring, and safety. For example, gas image processing may detect minute changes that could lead to early detection of tank failure or the presence of toxic chemicals. In concert with quantum sensing, quantum imaging may also help with various public safety-related applications such as search and rescue. Some problems are too difficult to calculate but can be simulated and modeled. Quantum simulations and modeling is an area that involves the use of quantum technology to enable simulators that can model complex systems that are beyond the capabilities of classical HPC. Even the fastest supercomputers today cannot adequately model many problems such as those found in atomic physics, condensed-matter physics, and high-energy physics.

Key Topics Covered:

1.0 Executive Summary

2.0 Introduction

3.0 Quantum Technology and Application Analysis3.1 Quantum Computing3.2 Quantum Cryptography Communication3.3 Quantum Sensing and Imaging3.4 Quantum Dots Particles3.5 Quantum Cascade Laser3.6 Quantum Magnetometer3.7 Quantum Key Distribution3.8 Quantum Cloud vs. Hybrid Platform3.9 Quantum 5G Communication3.10 Quantum 6G Impact3.11 Quantum Artificial Intelligence3.12 Quantum AI Technology3.13 Quantum IoT Technology3.14 Quantum Edge Network3.15 Quantum Blockchain

4.0 Company Analysis4.1 1QB Information Technologies Inc.4.2 ABB (Keymile)4.3 Adtech Optics Inc.4.4 Airbus Group4.5 Akela Laser Corporation4.6 Alibaba Group Holding Limited4.7 Alpes Lasers SA4.8 Altairnano4.9 Amgen Inc.4.10 Anhui Qasky Science and Technology Limited Liability Company (Qasky)4.11 Anyon Systems Inc.4.12 AOSense Inc.4.13 Apple Inc. (InVisage Technologies)4.14 Biogen Inc.4.15 Block Engineering4.16 Booz Allen Hamilton Inc.4.17 BT Group4.18 Cambridge Quantum Computing Ltd.4.19 Chinese Academy of Sciences4.20 D-Wave Systems Inc.4.21 Emerson Electric Corporation4.22 Fujitsu Ltd.4.23 Gem Systems4.24 GeoMetrics Inc.4.25 Google Inc.4.26 GWR Instruments Inc.4.27 Hamamatsu Photonics K.K.4.28 Hewlett Packard Enterprise4.29 Honeywell International Inc.4.30 HP Development Company L.P.4.31 IBM Corporation4.32 ID Quantique4.33 Infineon Technologies4.34 Intel Corporation4.35 KETS Quantum Security4.36 KPN4.37 LG Display Co. Ltd.4.38 Lockheed Martin Corporation4.39 MagiQ Technologies Inc.4.40 Marine Magnetics4.41 McAfee LLC4.42 MicroSemi Corporation4.43 Microsoft Corporation4.44 Mirsense4.45 Mitsubishi Electric Corp.4.46 M-Squared Lasers Limited4.47 Muquans4.48 Nanoco Group PLC4.49 Nanoplus Nanosystems and Technologies GmbH4.50 Nanosys Inc.4.51 NEC Corporation4.52 Nippon Telegraph and Telephone Corporation4.53 NN-Labs LLC.4.54 Nokia Corporation4.55 Nucrypt4.56 Ocean NanoTech LLC4.57 Oki Electric4.58 Oscilloquartz SA4.59 OSRAM4.60 PQ Solutions Limited (Post-Quantum)4.61 Pranalytica Inc.4.62 QC Ware Corp.4.63 QD Laser Co. Inc.4.64 QinetiQ4.65 Quantum Circuits Inc.4.66 Quantum Materials Corp.4.67 Qubitekk4.68 Quintessence Labs4.69 QuSpin4.70 QxBranch LLC4.71 Raytheon Company4.72 Rigetti Computing4.73 Robert Bosch GmbH4.74 Samsung Electronics Co. Ltd. (QD Vision Inc.)4.75 SeQureNet (Telecom ParisTech)4.76 SK Telecom4.77 ST Microelectronics4.78 Texas Instruments4.79 Thorlabs Inc4.80 Toshiba Corporation4.81 Tristan Technologies4.82 Twinleaf4.83 Universal Quantum Devices4.84 Volkswagen AG4.85 Wavelength Electronics Inc.4.86 ZTE Corporation

5.0 Quantum Technology Market Analysis and Forecasts 2021 - 20265.1 Global Quantum Technology Market 2021 - 20265.2 Global Quantum Technology Market by Technology 2021 - 20265.3 Quantum Computing Market 2021 - 20265.4 Quantum Cryptography Communication Market 2021 - 20265.5 Quantum Sensing and Imaging Market 2021 - 20265.6 Quantum Dots Market 2021 - 20265.7 Quantum Cascade Laser Market 2021 - 20265.8 Quantum Magnetometer Market 2021 - 20265.9 Quantum Key Distribution Market 2021 - 20265.9.1 Global Quantum Key Distribution Market by Technology5.9.1.1 Global Quantum Key Distribution Market by Infrastructure Type5.9.2 Global Quantum Key Distribution Market by Industry Vertical5.9.2.1 Global Quantum Key Distribution (QKD) Market by Government5.9.2.2 Global Quantum Key Distribution Market by Enterprise/Civilian Industry5.10 Global Quantum Technology Market by Deployment5.11 Global Quantum Technology Market by Sector5.12 Global Quantum Technology Market by Connectivity5.13 Global Quantum Technology Market by Revenue Source5.14 Quantum Intelligence Market 2021 - 20265.15 Quantum IoT Technology Market 2021 - 20265.16 Global Quantum Edge Network Market5.17 Global Quantum Blockchain Market5.18 Global Quantum Exascale Computing Market5.19 Regional Quantum Technology Market 2021 - 20265.19.1 Regional Comparison of Global Quantum Technology Market5.19.2 Global Quantum Technology Market by Region5.19.2.1 North America Quantum Technology Market by Country5.19.2.2 Europe Quantum Technology Market by Country5.19.2.3 Asia Pacific Quantum Technology Market by Country5.19.2.4 Middle East and Africa Quantum Technology Market by Country5.19.2.5 Latin America Quantum Technology Market by Country

6.0 Conclusions and Recommendations

For more information about this report visit https://www.researchandmarkets.com/r/6syb13

Media Contact:

Research and Markets Laura Wood, Senior Manager [emailprotected]

For E.S.T Office Hours Call +1-917-300-0470 For U.S./CAN Toll Free Call +1-800-526-8630 For GMT Office Hours Call +353-1-416-8900

U.S. Fax: 646-607-1907 Fax (outside U.S.): +353-1-481-1716

SOURCE Research and Markets

http://www.researchandmarkets.com

Original post:

The Worldwide Quantum Technology Industry will Reach $31.57 Billion by 2026 - North America to be the Biggest Region - PRNewswire

Are We on the Brink of a New Age of Scientific Discovery? – SciTechDaily

The centerpiece of the Muon g-2 experiment at Fermilab is a 50-foot-diameter superconducting magnetic storage ring, which sits in its detector hall amidst electronics racks, the muon beamline and other equipment. Credit: Reidar Hahn, Fermilab

In 2001 at the Brookhaven National Laboratory in Upton, New York, a facility used for research in nuclear and high-energy physics, scientists experimenting with a subatomic particle called a muon encountered something unexpected.

To explain the fundamental physical forces at work in the universe and to predict the results of high-energy particle experiments like those conducted at Brookhaven, Fermilab in Illinois, and at CERNs Large Hadron Collider in Geneva, Switzerland, physicists rely on the decades-old theory called the Standard Model, which should explain the precise behavior of muons when they are fired through an intense magnetic field created in a superconducting magnetic storage ring. When the muon in the Brookhaven experiment reacted in a way that differed from their predictions, researchers realized they were on the brink of a discovery that could change sciences understanding of how the universe works.

Earlier this month, after a decades-long effort that involved building more powerful sensors and improving researchers capacity to process 120 terabytes of data (the equivalent of 16 million digital photographs every week), a team of scientists at Fermilab announced the first results of an experiment called Muon g-2 that suggests the Brookhaven find was no fluke and that science is on the brink of an unprecedented discovery.

UVA physics professor Dinko Poani has been involved in the Muon g-2 experiment for the better part of two decades, and UVA Today spoke with him to learn more about what it means.

Q. What are the findings of the Brookhaven and Fermilab Muon g-2 experiments, and why are they important?

A. So, in the Brookhaven experiment, they did several measurements with positiveand negative muons an unstable, more massive cousin of the electron under different circumstances, and whenthey averaged their measurements,they quantified a magnetic anomaly that is characteristic of the muon more precisely than ever before. According torelativistic quantum mechanics, the strength of the muons magnetic moment (a property it shares with a compass needle or a bar magnet) should be two in appropriate dimensionless units, the same as for an electron. The Standard Model states, however, that its not two, its a little bit bigger, and that difference is the magnetic anomaly. The anomaly reflects the coupling of the muon to pretty much all other particles that exist in nature. How is this possible?

The answer is that space itself is not empty; what we think of as a vacuum contains the possibility of the creation of elementary particles, given enough energy. In fact, these potential particles are impatient and are virtually excited, sparking in space for unimaginably short moments in time. And as fleeting as it is, this sparking is sensed by a muon, and it subtly affects the muons properties. Thus, the muon magnetic anomaly provides a sensitive probe of the subatomic contents of the vacuum.

To the enormous frustration of all the practicing physicists of my generation and younger, the Standard Model has been maddeningly impervious to challenges. We know there are things that must exist outside of it because it cannot describe everything that we know about the universe and its evolution. For example, it does not explain the prevalence of matter over antimatter in the universe, and it doesnt say anything about dark matter or many other things, so we know its incomplete. And weve tried very hard to understand what these things might be, but we havent found anything concrete yet.

So, with this experiment, were challenging the Standard Model with increasing levels of precision. If the Standard Model is correct, we should observe an effect that is completely consistent with the model because it includes all the possible particles that are thought to be present in nature, but if we see a different value for this magnetic anomaly, it signifies that theres actually something else. And thats what were looking for: this something else.

This experiment tells us that were on the verge of a discovery.

Q. What part have you been able to play in the experiment?

A. I became a member of this collaboration when we had just started planning for the follow-up to the Brookhaven experiment around 2005, just a couple of years after the Brookhaven experiment finished, and we were looking at the possibility of doing a more precise measurements at Brookhaven. Eventually that idea was abandoned, as it turned out that we could do a much better job at Fermilab, which had better beams, more intense muons and better conditions for experiment.

So, we proposed that around 2010, and it was approved and funded by U.S. and international funding agencies. An important part was funded by a National Science Foundation Major Research Instrumentation grant that was awarded to a consortium of four universities, and UVA was one of them. We were developing a portion of the instrumentation for the detection of positrons that emerge in decays of positive muons. We finished that work, and it was successful, so my group switched focus to the precise measurements of the magnetic field in the storage ring at Fermilab, a critical part of quantifying the muon magnetic anomaly. My UVA faculty colleague Stefan Baessler has also been working on this problem, and several UVA students and postdocs have been active on the project over the years.

Q. Fermilab has announced that these are just the first results of the experiment. What still needs to happen before well know what this discovery means?

A. It depends on how the results of our analysis of the yet-unanalyzed run segments turn out. The analysis of the first run took about three years. The run was completed in 2018, but I think now that we weve ironed out some of the issues in the analysis, it might go a bit faster. So, in about two years it would not be unreasonable to have the next result, which would be quite a bit more precise because it combines runs two and three. Then there will be another run, and we will probably finish taking data in another two years or so. The precise end of measurements is still somewhat uncertain, but I would say that about five years from now, maybe sooner, we should have a very clear picture.

Q. What kind of impact could these experiments have on our everyday lives?

A. One way is in pushing specific technologies to the extreme in solving different aspects of measurement to get the level of precision we need. The impact would likely come in fields like physics, industry and medicine. There will be technical spinoffs, or at least improvements in techniques, but which specific ones will come out of this, its difficult to predict. Usually, we push companies to make products that we need that they wouldnt otherwise make, and then a new field opens up for them in terms of applications for those products, and thats what often happens. The World Wide Web was invented, for example, because researchers like us needed to be able to exchange information in an efficient way across great distances, around the world, really, and thats how we have, well, web browsers, Zoom, Amazon and all these types of things today.

The other way we benefit is by educating young scientists some of whom will continue in the scientific and academic careers like myself but others will go on to different fields of endeavor in society. They will bring with them an expertise in very high-level techniques of measurement and analysis that arent normally found in many fields.

And then, finally, another outcome is intellectual betterment. One outcome of this work will be to help us better understand the universe we live in.

Q. Could we see more discoveries like this in the near future?

A. Yes, there is a whole class of experiments besides this one that look at highly precise tests of the Standard Model in a number of ways. Im always reminded of the old adage that if you lose your keys in the street late at night, you are first going to look for them under the street lamp, and thats what were doing. So everywhere theres a streetlight, were looking. This is one of those places and there are several others, well, I would say dozens of others, if you also include searches that are going on for subatomic particles like axions, dark matter candidates, exotic processes like double beta decay, and those kinds of things. One of these days, new things will be found.

We know that the Standard Model is incomplete. Its not wrong, insofar as it goes, but there are things outside of it that it does not incorporate, and we will find them.

Continued here:

Are We on the Brink of a New Age of Scientific Discovery? - SciTechDaily

Physicist and jazz pianist combines music and science at Rochester – University of Rochester

May 6, 2021

As an undergraduate and later graduate student at the University of Rochester, Philippe Lewalle 14, 21 (PhD) has played piano at the Colleges music and physics department commencement ceremonies.

This year will be different, though: he will also be the one graduatingwith a PhD in physicsduring spring commencement ceremonies, May 14 to 16 and 20 to 23.

Visit the Class of 2021 site for details about this years Commencement ceremonies and for a downloadable toolkit of materials to share your support on social media.

The child of parents who are both violinists and academics, Lewalle began playing piano at age 7 and was drawn to Rochester because the University offered the possibility to combine his love of music and interest in science, earning dual degrees in music and physics at the School of Arts & Sciences.

I came to Rochester in large part because it was feasible to double major in physics and music, he says. Even though I was working a lot of long days as an undergrad, it always felt refreshing having two very different types of homework on my platter. If I got tired of one, I could always switch to the other.

The summer after his sophomore year, Lewalle had the opportunity to work with Joseph Eberly, the Andrew Carnegie Professor of Physics, conducting research on quantum optics. The research would ultimately set the direction of his graduate work and PhD dissertation.

That summer definitely shaped the trajectory I took later, Lewalle says. The research I conducted as an undergrad ended up relating a lot to my PhD work.

As a graduate student, he worked with physics professor Andrew Jordan, where his specific research focus was on tracking quantum systems in real timea process that is intrinsically invasive to changing the system state itself as it is monitoredand the odd things that happen when such systems are disturbed. The research is important not only for better understanding fundamental quantum mechanics, but also for improving quantum technologies such as quantum computers.

Throughout his time at Rochester, Lewalle continued to play music with a variety of musicians at venues in the city and took advantage of the musical opportunities offered by the Rochester community.

The pool of talent that comes through Eastman is really motivating and inspiring, Lewalle says. I have benefited a lot from playing with so many talented musicians throughout my time here, in addition to attending a number of the great performances, whether at Jazz Fest, student recitals, or other concerts that are held on a regular basis at Eastman and venues around the city.

Lewalles own musical interests include contemporary jazz and its intersections with hip-hop and free improvisation. One project he played in, called Claude Benningtons Fever Dream, involved a synthesis of hip-hop and jazz that took a jazz rhythm section and instead of horn players, put rappers out front, he says. We were learning beats and treating them like jazz tunes, improvising on and around them and sometimes venturing freely away from the written material. Recordings from the project are available on Bandcamp and YouTube.

Although many of his music projects have stalled due to the COVID-19 pandemic, Lewalle has continued to work on his own compositions and record and play when possible and safe, even while finishing his physics PhD thesis.

Its been difficult during COVID because, especially with jazz improv, you really feed on the energy of the crowds and the immediate interactions between musicians, he says. Its not the same without that.

In July, Lewalle will start a new chapter as he travels across the country to California to begin a postdoctoral research appointment, studying quantum mechanics in the group of K. Birgitta Whaley at the University of California Berkeley.

Tags: Arts Sciences and Engineering, Class of 2021, commencement, COVID-19, Department of Physics and Astronomy, event, Satz Department of Music, School of Arts and Sciences

Category: Student Life

Read the rest here:

Physicist and jazz pianist combines music and science at Rochester - University of Rochester

The First-Ever Evidence of the Multiverse – Interesting Engineering

In 1964, physicistsArno Penzias and Robert Wilson were working at Bell Labs in Holmdel, New Jersey, setting up ultra-sensitive microwave receivers for radio astronomy observations.

No matter what the two did, they couldn't rid the receivers of background radio noise that, puzzlingly, seemed to be coming from all directions at once. Penzias contacted Princeton University physicist Robert Dicke who suggested that the radio noise might be cosmic microwave background radiation (CMB), which is primordial microwave radiation that fills the universe.

And that is the story of the discovery of CMB. Simple and elegant.

For their discovery, Penzias and Wilsonreceived the 1978 Nobel Prize in Physics, and for good reason. Theirwork ushered us into a new age of cosmology, allowing scientists to study and understand our universe as never before.

Yet, this discovery also led to one of the most surprising findings in recent history: Unique features in the CMB could be the first direct evidence we've ever had of the multiverse of an infinity of worlds and alien peoples that exist beyond the known universe.

However, to properly understand this extraordinary claim, it's necessary to first take a journey back to the beginning of space and time.

According to the broadly accepted theory for the origin of our universe, for the first several hundred thousand years after the Big Bang, our universe was filled with a ferociously hot plasma comprised of nuclei, electrons, and photons, which scattered light.

By around 380,000 years of age, the continued expansion of our universe caused it to cool to below 3000 degrees K, which allowedelectrons to combine with nuclei to form neutral atoms, and the absorption of free electrons allowed light to illuminate the dark.

Evidence of this, in the form of radiation from the cosmic microwave background (the previously mentioned CMB), is what was detected by Penzias and Wilson, and it helped establish the Big Bang theory of cosmology.

Over the eons, continued expansion cooled our universe to a temperature of just around 2.7 K, but that temperature isn't uniform. Differences in temperature arise from the fact that matter is not uniformly distributed throughout the universe. This is thought to be caused by tiny quantum density fluctuations that occurred right after the Big Bang.

One spot, in particular, seen from the Southern Hemisphere in the constellation Eridanus, is particularly cold, around 0.00015 degrees colder than its surroundings. Dubbed the "Cold Spot", scientists originally thought it was a "supervoid," an area that contains far fewer galaxies than normal.

Then, in 2017, researchers at the UK's Durham University Centre for Extragalactic Astronomy published research they say suggests that the Cold Spot isn't a supervoid after all.

Instead? It may be evidence of alien universes.

Durham Professor Tom Shanks proposed what he described as a "more exotic" explanation for the Cold Spot. In his work, Shanks argued that the Cold Spot was "caused by a collision between our universe and another bubble universe...The Cold Spot might be taken as the first evidence for the multiverse - and billions of other universes may exist like our own."

Previously, physicists including Anthony Aguirre, Matt Johnson, and Matt Kleban had pointed out that a collision between our bubble universe and another bubble in the multiverse would, in fact, produce an imprint on the cosmic background radiation. Additionally, they noted that it would appear as a round spot having either a higher or a lower level of radiation intensity.

Shanks' proposal seems to fit the bill, but could this feature really be evidence of an infinite multitude of universes that exist beyond our own?

Today, there are three main contenders that explain how the multiverse may function: the Copenhagen Interpretation, the "many worlds" or "branches of the wave function" interpretation, and the "parallel branes" of string theory.

We're going to leave string theory for another day and focus on the other two explanations.

The total of all possible states in which an object can exist is called an object's coherent superposition,and it is made up of what's known as the object's "wave function".

Quantum mechanics necessitate a smooth, fully deterministic wave function a mathematical expression that conveys information about a particle in the form of numerous possibilities for its location and characteristics. It also requires something that realizes one of those possibilities and eliminates all the others.

Opinions differ about how that happens, but in the most common theory, known as the Copenhagen Interpretation, this occurs through observation of the wave function or by the wave function encountering some part of the "classical" world.This causes the probability, or wave function, to "collapse", and forces the particle into one state.

The Copenhagen Interpretation was worked out in the 1920s by physicists Niels Bohr and Werner Heisenberg, who argued that a particle does not have a material existence until it is subjected to measurement (observation).

The Copenhagen Interpretation was essentially a fudge and, for many, an unsatisfactory one at that.

In 1935, Austrian-Irish physicist Erwin Schrdinger articulated the problem with Copenhagen Interpretation with his famous thought experiment known as Schrdinger's Cat.

In this theoretical experiment, a cat is placed in a sealed box along with a bit of radioactive material and a Geiger counter. If the Geiger counter detects the decay of the radioactive material, it triggers the release of a poison gas which kills the cat.

While the box is sealed, the cat is in a superposition of being both alive and dead at the same time. It is only when the box is opened that the cat is forced into one state or another.Schrdinger pointed out that this was ridiculous, and that quantum superposition could not work with large objects such as cats, because it is impossible for an organism to be simultaneously alive and dead. Thus, he reasoned thatthe Copenhagen Interpretation must be inherently flawed.

A number of alternatives to the Copenhagen Interpretation were proposed. For example, the hidden variables approach championed by Albert Einstein and David Bohm, among others, suggests that the wave function be treated as a temporary fix until physicists eventually find something better. Late in his life, Heisenberg proposed that the problem is with our notion of reality itself. He suggested that the wave function represents an intermediate level of reality.

The most straightforward approach may be that ofthe "many worlds" interpretation" (MWI) which was first posited in 1957 by a graduate student at Princeton University namedHugh Everett.Everett was studying physics under John Archibald Wheeler, who had envisioned the fabric of the universe as being a churning, sub-atomic realm of quantum fluctuations, which he called "quantum foam".

In his dissertation, entitled The Theory of the Universal Wave Function, Everett contended that the universal wave function is real and doesn't collapse, as in the Copenhagen Interpretation. In that case, then every possible outcome of a quantum measurement is realized in some "world" or universe, and by that logic, there must be a very large, or infinite, number of universes.

Everett's many worlds interpretation of quantum physics received little support from the wider physics community, and Everett spent his entire working life outside of academia. So strongly did Everett believe in his theory that he ate whatever he wanted, smoked three packs of cigarettes a day, drank to excess, and refused to exercise. In July 1982, Hugh Everett died suddenly of a heart attack aged 51.

Per his instructions, Everett was cremated and his ashes thrown into the garbage. In 1996, Everett's daughter, Elizabeth, killed herself, and her suicide note stated that she too wanted her ashes to be thrown into the garbage so that she might "end up in the correct parallel universe to meet up w[ith] Daddy."

Everett's son, Mark Oliver Everett went on to form the rock group "The Eels" whose music is often filled with themes of family, death, and lost love.

Famed British physicist Stephen Hawking died on March 14, 2018, after spending decades confined to a wheelchair and dependent upon a speech synthesizer due to suffering from amyotrophic lateral sclerosis. Hawking's final research paper, published just 10 days before he died, was written along with Thomas Hertog, a professor of theoretical physics at KU Leuven University in Belgium, and it concerned the multiverse.

In the paper entitled, "A Smooth Exit from Eternal Inflation?" Hawking and Hertog proposed that the rapid expansion of space-time after the Big Bang may have happened repeatedly, creating a multitude of universes.

This was an expansion of Inflation Theory, the currently-held theory that the Big Bang was not really the beginning.Inflation Theory suggests that, before the Big Bang, the Universe was filled with energy that was part of space itself, and that energy caused space to expand at an exponential rate. It is that energy that gave rise to Big Bang.

However, because inflation, like everything else, is quantum in nature, it must haveended at different times in different locations, while the space between the locations continued to inflate. This, in turn, means that there would be regions of space where inflation ends anda Big Bang begins, but these regions can never encounter one another, as they're separated by regions of inflating space.

In an interview, Hawking explained his concerns with Inflation Theory, saying, 'The usual theory of eternal inflation predicts that globally our universe is like an infinite fractal, with a mosaic of different pocket universes, separated by an inflating ocean. The local laws of physics and chemistry can differ from one pocket universe to another, which together would form a multiverse. But I have never been a fan of the multiverse. If the scale of different universes in the multiverse is large or infinite the theory cant be tested."

Instead, the pair predict that the universe, at least onthe largest scales, is actually smooth and finite. Their theory uses the concept of holography, which describes how physical reality in certain 3D spaces can be mathematically reduced to 2D projections on a surface. By using this concept, they were able to reduce eternal inflation to a timeless state, defined on a spatial surface at the beginning of time itself.

Hertog and Hawking then used their new theory to predict that the universe which emerges from eternal inflation is actually finite and much simpler than the infinite fractal structure predicted by the existing theory of eternal inflation.

Hawking explained that, We are not down to a single, unique universe, but our findings imply a significant reduction of the multiverse, to a much smaller range of possible universes."

This makes the theory not only more predictive but also testable.

And, if Hawking and Hertog, Everett and Laura Mersini-Houghton, Tegmark and Greene, and a multitude of other physicistsare right, then somewhere, in another universe at the exact moment that you're reading this article, Hawking is walking and talking animatedly about physics. Let's hope.

Disclaimer: This article has been updated. A previous version incorrectly said "Walter" instead of Werner Heisenberg.

See the original post:

The First-Ever Evidence of the Multiverse - Interesting Engineering

Not Even This by Jack Underwood review fatherhood, philosophy and fear – The Guardian

About three years ago, the poet Jack Underwood became a father for the first time. The responsibility weighed heavily: he recalls feeling that there should have been more paperwork. We signed a form or two and then they just sort of let us take you away. A human child. A few months later, he started having panic attacks his love for his daughter had rendered him utterly fucked with worry. He decided to write about it, which helped: my breathing regulated, my thoughts took shape, giving direction to my feelings; finding my thinking voice was like opening an enormous valve. The resulting book is a thoughtful essay-memoir on parenthood, in which Underwood recounts how he learned to manage his angst to live within the fear by embracing uncertainty.

Not Even This takes its title from the ancient philosopher Carneades of Cyrene, who remarked that Nothing can be known; not even this. It is a hybrid work, alternating between two distinct modes of writing: an epistolary memoir in the second person, addressed to the authors daughter; and a freewheeling meditation on the theme of uncertainty, touching on assorted matters of quantum physics, neuroscience, etymology, history, economics and technology. These include, among other things, the disagreement between Albert Einstein and Henri Bergson as to whether time exists independently of human beings; the biomedical ethics of transhumanism; the prospect of the technological singularity, when digital superintelligence will transcend the human intellect; the way time seems to slow down when were doing something interesting; the anomalousness of wave-particles; the reality behind the myth of Joan of Arc.

The gist? Knowledge is inherently tenuous, mutable renegotiable, political and socialised, and the craving for certainty is at the root of many societal ills. The financial system, for example, is wedded to certain rigid orthodoxies that are periodically disproved, with disastrous consequences: When we mistake the power of finance for certainty in its workings, then we only hand it more power, more confidence, and so permit it to act less and less reasonably. Fallibility is integral to human progress, so its best to go with the flow: a parent has little choice but to learn to trust a child to become themselves, and such trust is a kind of love.

The idea of trust also informs his approach to creative writing. Underwood, whose first poetry collection, Happiness, was published by Faber in 2015, sees poetry as a form of dissonant, unruly, uncertain knowledge, in which language is provisional, equivocal, interpretable. The process of composition is built on two-way trust: trusting the reader to get it, and trusting yourself, as a writer, to make yourself understood. Unlike many poets, Underwood doesnt save multiple drafts of his poems, but restricts himself to a single document and if I ruin it well, never mind Maybe I need the fear, the slight risk, to force myself to take responsibility for the poem in my care I have to move forwards in one vulnerable, resolute trajectory.

Underwood rejects the platitudinous notion that having kids turns you into a better person If anything parenthood has made us more selfish, more insular, always directing our hearts resources inwards. But he is, by his own account, a sentimental sort (I find old batteries funereal. I thank cash machines and postboxes), and this is what gives this book its charm. He reminisces fondly about his daughters first unaided steps, and sympathetically recalls how, during the first few months of her life, she would become extremely unsettled a neurotic, crotchety recluse whenever he had guests round: A roomful of strangers bursting out laughing must have been a grotesque, hyperreal tableau of teeth and gums. He believes silliness is intrinsic to intimacy, and encourages her to feast, you daft little cherub. There is practically nothing in life better than being incredibly silly. Elsewhere, overcome with love, he gushes endearments: My bag of fish. My cuddling gammon. Look at you go! Jesus Christ. Let me count the ways.

This is Underwoods first book of nonfiction prose and, like most debuts, it has its flaws. The central argument is somewhat woolly almost any subject might be obliquely tethered to uncertainty and Underwoods rhapsodic lyricism sails dangerously close to feyness at times. But he is a lucid and engaging companion. The voice that comes through in these pages is immensely likable humble, conscientious and emotionally intelligent. The books format flitting back and forth between disquisition and memoir every few pages serves the reader well: the essayistic meanderings are kept in check, and the autobiographical candour doesnt cloy.

A number of recent books on fatherhood have examined the subject through the prism of masculinity. These include Charlie Gilmours Featherhood (2020), Caleb Klaces Fatherhood (2019), Toby Litts Wrestliana (2018), Howard Cunnells Fathers and Sons (2017) and William Giraldis The Heros Body (2017). Though Not Even This also touches questions of gender, the scope of its existential inquiry is broader: Underwoods overarching theme is fear and fear, as he rightly points out, is what underpins the less savoury aspects of conventional masculinity. For all his fretfulness, this is an upbeat book. Underwoods dread gave way to a sanguine sense of purpose and self-sacrifice: Ive experienced a shift in my personhood, he writes, and acquired this sense of my body as happy collateral, a buffer of meat. Im not the important one in my life any more.

Not Even This: Poetry, Parenthood & Living Uncertainly by Jack Underwood is published by Corsair (14.99). To order a copy go to guardianbookshop.com. Delivery charges may apply.

See the rest here:

Not Even This by Jack Underwood review fatherhood, philosophy and fear - The Guardian

College majors that earn the most money | Personal Finance | stltoday.com – Suburban Journals

Choosing a college major is a big decision. Students must select to study something that challenges and interests them while balancing the hard realities of the job market and outlook of career paths. A good salary coming out of college is key to a secure middle class future, and with increasing student loan debts, choosing a major that yields bigger salaries out the gate becomes ever more desirable.

To show just how valuable these college majors can be, Stacker used data from a 2020 PayScale report to rank the top 100 college majors that alumni make the most money from in their respective professional careers. The rankings, released in 2021, are based on the highest average mid-career salary. Information is provided about the jobs a major in that area might be hired for, which skills theyll attain while in school, and what the Bureau of Labor Statistics projects their prospects are of finding a job upon graduation with a bachelors degree.

Stackers list of top 100 college majors that earn the most money is diverse, beginning with Japanese studies and ending with petroleum engineering. In between, computational and applied mathematics, aeronautics, building science, and mechatronics top the ranks of college majors that earn the most money early to mid-career. Within the list, engineer-related college majors dominate, with petroleum engineering majors making the most mid-career pay at $182,000.

Keep reading to find out if your major made the list of college majors that earn the most money.

You may also like: 100 Highest Paying Jobs In America

View post:

College majors that earn the most money | Personal Finance | stltoday.com - Suburban Journals