Category Archives: Quantum Computing
David Bacon, senior software engineer in Googles quantum lab: Quantum computers do computations in parallel universes. This by itself isnt useful. U only get to exist in 1 universe at a time! The trick: quantum computers dont just split universes, they also merge universes. And this merge can add and subtract those other split universes.
David Reilly, principal researcher and director of the Microsoft quantum computing lab in Sydney, Australia: A quantum machine is a kind of analog calculator that computes by encoding information in the ephemeral waves that comprise light and matter at the nanoscale. Quantum entanglement likely the most counterintuitive thing around holds it all together, detecting and fixing errors.
Daniel Lidar, professor of electrical and computer engineering, chemistry, and physics and astronomy at the University of Southern California, with his daughter Nina, in haiku:
Quantum computerssolve some problems much fasterbut are prone to noise
Superpositions:to explore multiple pathsto the right answer
Interference helps:cancels paths to wrong answersand boosts the right ones
Entanglement makesclassical computers sweat,QCs win the race
Scott Aaronson, professor of computer science at the University of Texas at Austin: A quantum computer exploits interference among positive and negative square roots of probabilities to solve certain problems much faster than we think possible classically, in a way that wouldnt be nearly so interesting were it possible to explain in the space of a tweet.
Alan Baratz, executive vice president of research and development at D-Wave Systems: If were honest, everything we currently know about quantum mechanics cant fully describe how a quantum computer works. Whats more important, and even more interesting, is what a quantum computer can do: A.I., new molecules, new materials, modeling climate change
We presently take great pride in the way we can find directions to anywhere. Gone are the days were the paper-printed maps were our only guides in foreign places, as now all it takes to get from point A to point wherever is a swipe of the finger.
All present-day navigation solutions can direct a car depending on a variety of factors on a number of routes. The problem is none of them take into account what the other cars are doing in real time, and, just when you were about to gloat for having dodged a bottleneck, you find other drivers, lots of them, had the exact same advice served to them by navigation apps.
Quantum computing might help with that, as they are countless times faster, and exactly such a solution was tested by Volkswagen earlier this month at the Web Summit in Portugal.
Using an algorithm called Quantum Routing and a D-Wave quantum computer, Volkswagen showed that nine public transit buses can successfully avoid traffic jams by knowing in real-time where such queues are being formed.
Volkswagen believes quantum computing has the potential to revolutionize how we use and learn from data in the real world, said in a statement Thomas Bartol, senior vice president of Information Technology and Services for Volkswagen Group of America.
Even though the technology is still in its early stages, this demonstration shows its potential, and how Volkswagen plans to play a leading role in bringing these solutions to market.
The tech demonstrated by the Germans in Portugal is nowhere near mass implementation. Volkswagen did announce that it is planning to bring the tools it already showed to market maturity, but it's unclear in what timeframe.
For now, the carmaker is looking for other clogged cities to explore.
Global Quantum Computing Market Expected to Deliver Dynamic Progression until 2028| D-Wave Systems, Google, IBM, Intel, Microsoft, 1QB Information…
Researchers Discover New Way to Split and Sum Photons with Silicon – UT News | The University of Texas at Austin
A team of researchers at The University of Texas at Austin and the University of California, Riverside have found a way to produce a long-hypothesized phenomenonthe transfer of energy between silicon andorganic, carbon-based moleculesin a breakthrough that has implications for information storage in quantum computing, solar energy conversion and medical imaging. The research is described in a paper out today in the journalNature Chemistry.
Silicon is one of the planets most abundant materials and a critical component in everything from the semiconductors that power our computers to the cells used in nearly all solar energy panels.For all of its abilities, however, siliconhas some problems when it comes to converting light into electricity.Different colors of light are comprised of photons,particles that carry lights energy. Silicon can efficiently convert red photons into electricity, but withblue photons, whichcarry twice the energy of red photons, siliconloses most oftheenergy as heat.
The new discoveryprovides scientists with a way to boost silicons efficiency by pairing it with a carbon-based material that converts blue photons intopairs of red photons that can be more efficiently used by silicon.This hybrid material can also be tweaked to operate in reverse, taking in red lightand converting it into blue light, which has implications formedical treatmentsand quantum computing.
The organic molecule weve paired silicon with is a type of carbon ash calledanthracene. Its basically soot, saidSean Roberts, a UT Austin assistant professor of chemistry. The paper describesamethod for chemically connecting silicon to anthracene, creating a molecular power line thatallowsenergy to transfer between the silicon and ash-like substance. We now can finely tune this material to react to different wavelengths of light. Imagine, for quantum computing, being able to tweak and optimize a material to turn one blue photon into two red photons or two red photons into one blue. Its perfect for information storage.
For four decades, scientists have hypothesized that pairing silicon with a type of organic material that better absorbs blue and green light efficiently could be the key to improving siliconsability to convert light into electricity. But simply layering the two materials never brought about the anticipatedspintriplet exciton transfer,a particular type of energy transfer fromthe carbon-based material to silicon,needed to realize this goal. Roberts and materials scientists at UC Riverside describe howthey broke through the impasse with tiny chemical wires that connect silicon nanocrystals toanthracene, producing the predicted energy transfer between them for the first-time.
The challenge has been getting pairs of excited electrons out of these organic materials and into silicon. It cant be done just by depositing one on top of the other, Roberts said. It takesbuilding a new type of chemical interface between the silicon and this material to allow them to electronically communicate.
Roberts and his graduate student EmilyRaulersonmeasured the effect in a specially designed molecule that attaches to a silicon nanocrystal, the innovation of collaborators Ming Lee Tang, LorenzoMangoliniand Pan Xia of UC Riverside. Using an ultrafast laser, Roberts andRaulersonfound that the new molecular wire between the two materials was not only fast, resilient and efficient, itcould effectivelytransfer about 90% of the energy from the nanocrystal to the molecule.
We canuse this chemistrytocreate materials thatabsorb and emit anycolorof light, saidRaulerson, who says that, with further fine tuning, similar silicon nanocrystals tethered to a molecule could generate a variety of applications, from battery-less night-vision goggles to new miniature electronics.
Other highly efficient processes of this sort, called photon up-conversion, previously relied on toxic materials. As the new approach uses exclusively nontoxic materials, it opens the door for applications in human medicine, bioimaging and environmentally sustainable technologies, something thatRoberts and fellow UT Austin chemist Michael Rose are working towards.
At UC Riverside, Tangs lab pioneered how to attach the organic molecules to the silicon nanoparticles, andMangolinisgroup engineered the silicon nanocrystals.
The novelty is really how to get the two parts of this structurethe organic molecules and the quantum confined silicon nanocrystalsto work together, saidMangolini, an associate professor of mechanical engineering. We are the first group to really put the two together.
The papers other authors include Devin Colemanand CarterGerkeof UC Riverside.
Funding for the research was provided by the National Science Foundation, the Robert A. Welch Foundation, the Research Corporation for Science Advancement, the Air Force Office of Scientific Research and the Department of Energy. Additionally,Raulersonholds the Leon O. Morgan Graduate Fellowship at UT Austin.
BOULDER, Colo.--(BUSINESS WIRE)--ColdQuanta, the quantum atomics company, is pleased to announce that its newest Quantum Core atomic system, a core subsystem of Jet Propulsion Laboratorys (JPL) next-generation Cold Atom Laboratory (CAL), is part of the payload being delivered to the International Space Station (ISS) as part of NASAs CRS 19 mission. CAL is a multiuser facility that enables scientists to perform quantum physics experiments and study fundamental laws of nature using ultracold quantum gases in microgravity. The new technology from ColdQuanta incorporates an atom interferometer, an ultra-precise quantum sensor with uses ranging from fundamental research in general relativity and earth science to future applications including GPS-free navigation.
Over the past year, ColdQuanta has been awarded numerous projects from NASA and other U.S. government organizations that leverage our Quantum Core technology, said Bo Ewald, CEO of ColdQuanta. While the use cases are different, they all contribute to expanding the capabilities of our foundational technology and to significant advances toward the commercialization of quantum technology.
The Cold Atom Laboratory is a unique platform for studying quantum phenomena and potential applications of real-time quantum sensor technologies, said Dana Anderson, Founder and Chief Technology Officer of ColdQuanta. Since it first arrived at the ISS in May 2018, the CAL has successfully demonstrated important milestones, including what JPL called the coolest experiment in the universe when a Bose-Einstein condensate was produced in orbit for the first time. We are excited to see what new milestones will be achieved with this second generation.
The launch of the SpaceX Falcon 9 rocket from Cape Canaveral Air Force Station in Florida is currently targeted for Wednesday, Dec. 4.
ColdQuanta leads the market in commercializing quantum atomics, the next wave of the information age. The companys Quantum Core technology uses ultra-cold atoms cooled to a temperature of nearly absolute zero using lasers to manipulate and control the atoms with extreme precision. Based on its Quantum Core technology, ColdQuanta manufactures components, instruments, and turnkey systems that address a broad spectrum of applications ranging from timekeeping and navigation to quantum computing, and from radiofrequency (RF) receivers to quantum communications systems. ColdQuantas global customers include major commercial and defense companies, all branches of the U.S. Department of Defense, national labs operated by the Department of Energy, NASA, and NIST, and major universities. ColdQuanta is based in Boulder, CO with offices in Madison, Wisconsin and Oxford, UK.
Find out more at http://www.coldquanta.com.
The name ColdQuanta and the ColdQuanta logo are both registered trademarks of ColdQuanta, Inc.
Google and IBM may be battling for quantum supremacy, but Amazon is currently happy to be the middleman today, its announcing and launching a preview of Amazon Braket, its attempt to turn the nascent field of quantum computing into a service you can access over the internet. Amazon Braket is a fully managed AWS service, with security & encryption baked in at each level, the company explains in a blog post.
For now, it sounds like a pretty limited affair, where you will mean Amazons corporate customers, and where service means the ability to experiment by running simulations on a set of existing quantum computers from partners D-Wave, IonQ, and Rigetti.
This new service is designed to let you get some hands-on experience with qubits and quantum circuits. You can build and test your circuits in a simulated environment and then run them on an actual quantum computer, writes Amazon.
But Amazon says its also creating the AWS Center for Quantum Computing, a physical lab near the California Institute of Technology (Caltech) where it may research quantum computers of its own and more uses for quantum computers, for that matter. The companys director of quantum computing confirmed to Wired that Amazon is working on quantum hardware.
Theoretically, quantum computers could calculate far faster than traditional supercomputers thanks to the fact that their bits can exist in multiple quantum states instead of simply being on (1) or off (0), and thats what Google recently claimed it had achieved with its 54-qubit Sycamore quantum computer. The company says its machine successfully made a calculation that would take the worlds most powerful supercomputer 10,000 years.
But quantum computers are also rare and extremely expensive, so Amazon is attempting to turn them into a shared, managed, and potentially scalable resource, like it already does with its highly valuable AWS cloud computing platform. That invisible server empire serves as backbone for many of the internet services you use today.
Archer Materials invited to chair quantum computing session at London conference – Proactive Investors Australia
() chief executive officer Dr Mohammad Choucair updates Proactive on the company being invited to chair an entire session on quantum computing at a global conference in London during April 2010.
The April timing coincides with the important milestone of 12 months since the start of Archers 12CQ flagship quantum computing project and this project will feature strongly in the presentation.
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Archer Materials to chair Quantum Computing session at London Quantum.Tech Conference in 2020 – Proactive Investors Australia
Archer provides shareholders with exposure to financial returns from innovative technologies and the materials that underpin them.
() has accepted the opportunity to chair an entire session on the topic of Quantum Computing at the Quantum.Tech Conference in London in April 2020.
Following Archers success at the Tech Global Business Conference and Exhibition in Boston in September,commercial progress achieved in development of the 12CQ room-temperature qubit processor chipand as part of advancingits quantum technology vertical, CEODr Mohammad Choucair and Quantum Technology manager Dr Martin Fuechsle will attend.
The conference is a high-level international event with a strong focus on commercial applications of quantum technology.
Itaims to facilitate development of the broader supply chain in the commercial applications of quantum computing technology.
Choucair said: The opportunity to chair a session on quantum computing at the conference is testament to the progress the company has made.
The focus of our CQ activities leading up to the conference centres onquantum measurements of the chip (qubit) components - the quantum in quantum computing.
April 2020 will be 12 months since Archer commenced the 12CQ project and we look forward to updating organisations in the quantum computing ecosystem on our exciting progress.
Archer will also give a presentation introducing the company and the CQ project and will update delegates on the quantum computing progress, identify upcoming opportunities and conduct face-to-face meetings with key decision-makers in the quantum economy.
With access to world-class facilities to build prototype chips, the company has advanced the commercial readiness of the chip and has demonstrated the possibility of qubit scalability in fabrication by precisely positioning the chip qubit component.
Magnetic-based spintronic computers could match the raw computing power of quantum computers, without the need for electricity.
Researchers at Massachusetts Institute of Technology (MIT) have developed an innovative new circuit that allows for precise computing without the need for electricity. The novel design instead relies on magnetic waves an advance that makes a significant step towards magnetic devices. Dubbed spintronics these devices have the potential to be more powerful and efficient than electronics.
Classical computers which depend on the consumption of massive amounts of electricity generate a huge amount of wasted heat. In contrast to this, spintronic devices use very little electricity in comparison and thus, generate far less heat practically none, in fact.
Spintronic devices use a particular property of electrons on a quantum-level called the spin-wave in magnetic materials in a lattice-like arrangement. The process involves utilising modulation of this spin-wave to produce a measurable output correlated to computing.
People are beginning to look for computing beyond silicon. Wave computing is a promising alternative, says Luqiao Liu, a professor in the Department of Electrical Engineering and Computer Science (EECS) and principal investigator of the Spintronic Material and Device Group in the Research Laboratory of Electronics.
The significant breakthrough made by the MIT team is the development of a circuit architecture that does away with the need for bulky components used to inject electrical currents. This is an advantage as such components can cause signal noise, thus reducing performance.
The team negated the need for such components by developing a nanometer-wide magnetic domain wall in layered nanofilms of magnetic material to modulate a passing spin-wave, with no need for any extra components or electrical current. In turn, the spin-wave can be tuned to control the location and width of this domain as needed, giving precise control of two changing spin-wave states. These spin states corresponding to the 1s and 0s used in classical computing.
Future applications of these spin-waves could see pairs fed into a circuit through dual-channels. Each member of this pair could be modulated for different properties combining to generate measurable quantum interference. This is analogous to the use of photon-wave interference in quantum computing.
By using this narrow domain wall, we can modulate the spin-wave and create these two separate states, without any real energy costs. We just rely on spin waves and intrinsic magnetic material, Liu continues.
As such, the researchers suggest that such spintronics based devices relying on interference could, in theory, match quantum computers in terms of raw computing power, executing complex tasks that conventional computers struggle with.
Spin waves are ripples of energy with small wavelengths, the collective spins of many electrons are called magnons. Although these magnons are not true particles they can be measured in a similar way to electrons to be used in computing applications.
The team layered a pattern of cobalt/nickel nanofilms each a few atoms thick with certain desirable magnetic properties that can handle a high volume of spin waves. Then placing this wall in the middle of a magnetic material with a special lattice structure. This system was then integrated into a circuit.
On one side of the circuit, the researchers excited constant spin waves in the material. As this wave passes through the wall, its magnons immediately spin in the opposite direction, flipping from north in the first region to south in the second region beyond the wall. This flip causes a dramatic shift in the waves phase or its angle of orientation and a slight decrease in its magnitude or its power.
In their experiments, the researchers placed a separate antenna on the opposite side of the circuit, detecting and transmitting an output signal. R
Their results indicated that, at its output state, the phase of the input wave flipped 180 degrees. The waves magnitude measured from highest to lowest peak had also decreased by a significant amount.
The team also discovered a mutual interaction between spin-waves and the magnetic domain wall. This interaction enabled them to efficiently switch between two states. Without the domain wall, the circuit would be uniformly magnetized. But, with the domain wall in place, the circuit has a split, modulated wave.
By controlling the spin-wave, the MIT researchers found that they were able to control the position of the domain wall. This process relies on a phenomenon involving spinning electrons essentially jolting a magnetic material in order to flip its magnetic orientation otherwise known as spin-transfer torque.
The team boosted the power of injected spin waves to induce a specific spin in the magnons pulling the domain wall toward the boosted wave source. Doing this results in the wall getting stuck under the antenna effectively making it unable to modulate waves and ensuring uniform magnetization in this state.
Using a special magnetic microscope, the team were able to identify that this process causes a micrometre-sized shift in the wall. Just enough to position it anywhere along the material block.
Liu notes that the mechanism of magnon spin-transfer torque was proposed, but not demonstrated, a few years ago. There was good reason to think this would happen, the researcher adds. But our experiments prove what will actually occur under these conditions.
Liu describes the whole circuit is like a water pipe. The domain wall acting as a valve controls how the spin-wave flows through the material just like water flows through a pipe.
But you can also imagine making water pressure so high, it breaks the valve off and pushes it downstream, Liu elaborates. If we apply a strong enough spin-wave, we can move the position of domain wall except it moves slightly upstream, not downstream.
Such innovations could enable practical wave-based computing for specific tasks, such as the signal-processing technique, called fast Fourier transform.
As a further step in their work, the researchers hope to build a working wave circuit that can execute basic computations. In order to do this, they must optimize materials, reduce potential signal noise, and further study how fast they can switch between states by moving around the domain wall.
Thats next on our to-do list, concludes Liu.
By Ashish Arora Et Al
Is American innovation sputtering? The data suggests so: productivity growth in the US, which is powered by innovation, has been decelerating. Total factor productivity grew substantially in the middle of the 20th century, but started slowing in 1970.
Data from the National Science Foundation indicate that US investment in science has steadily increased between 1970 and 2010, as measured by dollars spent (up 5X), number of PhDs trained (2X) and articles published (7X). Why is there little productivity growth? Probably todays science is simply not as groundbreaking as before.
Some dispute this, however, pointing to advances in quantum physics (quantum computing), plasma physics and molecular biology. Another explanation is that todays science is not being translated into applications in other words, something is keeping scientific discoveries from fuelling productive innovation.
Our research finds that the US innovation ecosystem has splintered since the 1970s, with corporate and academic science pulling apart and making application of basic scientific discoveries more difficult. Our analysis also shows that venture capital-backed scientific entrepreneurship has helped to bridge this gap between corporate science and academia but only in a couple of sectors.
From Why the US Innovation Ecosystem is Slowing Down
DISCLAIMER : Views expressed above are the author's own.
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Innovate, and grow - Economic Times