Category Archives: Quantum Physics

Chad Orzel, associate professor of physics and astronomy, honored as APS Fellow – Union College

The American Physical Society has honored Chad Orzel, associate professor of physics and astronomy, as a member of the Societys 2021 Fellows.

The APS Fellowship Program recognizes members who have made exceptional contributions to the physics enterprise in physics research, important applications of physics, leadership in or service to physics, or significant contributions to physics education.

Each year, no more than one-half of one percent of the Society membership is recognized by their peers for election to the status of Fellow in the American Physical Society. This year, 155 Fellows were selected for their contributions to science in an announcement Wednesday.

Orzel was nominated through the Forum on Outreach and Engaging the Public, which focuses on improving the public's knowledge of and appreciation for physics.

In addition to teaching and research, Orzel writes books about science for non-scientists. His first book, "How to Teach [Quantum] Physics to Your Dog," explains modern physics through imaginary conversations with his German shepherd, Emmy. His most recent book, "Breakfast with Einstein: The Exotic Physics of Everyday Objects," explains how quantum physics shows up in the course of ordinary morning activities. "A Brief History of Timekeeping," which covers 5,000 years of the science and technology of marking time, is due out in January. It is based in part on a sophomore research seminar he has taught at Union.

Orzel also maintains a steady online presence, which started with the launch of a blog, Uncertain Principles, in 2002. He is a regular contributor to Forbes and Substack.

I use those platforms to try to show people a bit about life as a scientist and some of the wonders of physics, particularly quantum mechanics, said Orzel. This goes hand in hand with my work teaching at Union. Much of what's in the books and on the blogs is drawn from courses I teach, and I've used materials I developed for the books in some of my courses.

Orzel said it is a great honor to have his work recognized by his peers.

It really means a lot to know that other members of the physics community appreciate the time and effort I've put into trying to share physics with the broader public, he said. It would not have been possible without support from the Union community, both directly providing me the time and space to research and write (and access to library books and journals), and more indirectly through having colleagues to ask questions and bounce ideas off.

Orzel joined Union in 2001.

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Chad Orzel, associate professor of physics and astronomy, honored as APS Fellow - Union College

Discovery Fund to Seed Local Innovation Ecosystem – Maryland Today

University of Maryland President Darryll J. Pines today announced the creation of the Discovery Fund, which will support innovative companies and startups based in College Park and throughout Prince Georges County with up to $1 million a year from the university.

The first round of support is earmarked to help build a network of quantum business focused around UMD, Pines said in an address at the universitys inaugural Quantum Investment Summit. The two-day event was designed to connect investors and innovators in the growing quantum business and technology space, and drew more than 300 in-person and virtual participants from U.S. and international companies and organizations.

The university has long been a powerhouse in quantum physics research as well as a leader in designing and engineering technology based on this revolutionary branch of scienceone expected to result in quantum computers with unprecedented capabilities as well as disruptive advances in material science, digital security, health care and other fields.

UMDs growing commitment to strengthening the industrys foundation further solidifies the universitys status as the heart of the Capital of Quantum, Pines said.

This continual building on the infrastructure needed to catalyze startups and create groundbreaking products is absolutely essential if were to support and accelerate the advancement and commercialization of quantum technologies, he said. The Discovery Fund is the perfect addition to keep the momentum going around the quantum ecosystem we have been building for more than three decades.

The announcement of the new funding comes the same month that a leading quantum computing company, IonQ, went public on the New York Stock exchange with a $2 billion market valuation. The company is based in part on technology developed in UMD labs, and illustrates what the university has to gain: As IonQ works to bring quantum computing to scale, its continued close connection with UMD affords the company access to a pipeline of stellar workforce talent, Pines said today.

Another feature in UMDs expanding ecosystem is the Quantum Startup Foundry (QSF), backed by a $10 million capital investment from UMD, which will function as a business incubator to support nascent firms in the quantum technology field. The university today announced that MITRE, a not-for-profit company that works in the public interest and operates six federally funded research and development centers in areas including aviation, defense, health care, homeland security, and cybersecurity had joined as a founding QSF member.

Julie Lenzer, UMDs chief innovation officer, said offerings like the QSF and the Quantum Investment Summit help make the university central to quantum-based industry as it already is in quantum science and engineering research.

Helping to give rise to a company as successful as IonQ would be a once-in-a-lifetime thing for most schools, if that, Lenzer said. But were continuing to build on this so we can breed more success by connecting innovative quantum research and ideas with investors who want to make a difference in an area thats going to define the future.

Attendees at the investment summit included businesses ranging from giants like Lockheed Martin and IBM to new firms vying to become household names, as well as local and state officials, investors and venture capital firms.

With federal and state agencies and nations worldwide pouring many billions of dollars into quantum researchand hoping to reap the rewards of winning the race to deploy the technologyUMD, the region and the nation must strive to turn deep fundamental understanding of the science into innovation, Pines said.

Make no mistake: This is our generations space race, he said. Who will be the first to unleash the power of quantum? Im hoping its going to be us.

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Discovery Fund to Seed Local Innovation Ecosystem - Maryland Today

Black holes and the multiverse: Decoding how physicists’ brains work – CNET

Richard Feynman with Yang Chen Ning, American physicists, circa 1950s.

Quantum particles exist and don't exist. Space is likely a moldable fabric. Dark matter is invisible, yet it binds the entire universe. And our universe, created from an explosion 13.8 billion years ago, is infinitely expanding into something. Or, maybe nothing.

Unless you're a trained physicist, at least one of those statements probably hurts your brain.

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We experience a sort of cognitive dissonance when attempting to comprehend the vastness of such unimaginable, complex concepts. But theoretical physicists think about, and even conjure, these ideas all day, every day.

How do they do it?

According to new research, published Monday in the journal npj Science of Learning, physicists' brains grapple with counterintuitive theories by automatically categorizing things as either "measurable" or "immeasurable."

"Most of the things we encounter every day, like a rock, a lake, a flower, you can say, 'Well it's about the size of my fist... but the concepts that physicists think about don't have that property," said Marcel Just, a psychologist at Carnegie Mellon University and first author of the study.

To study exactly how physicists' brains work, Just and fellow researchers gave 10 Carnegie Mellon physics faculty members -- with differing specialties and language backgrounds -- a ledger of physics concepts. Then, they used fMRI (functional magnetic resonance imaging) scans to examine the subjects' brain activity as the individuals went down the list.

In contrast to normal MRIs, which help with anatomical studies, functional MRIs can detect brain activity based on fluctuations in blood flow, glucose and oxygen.

Turns out, each physicist's brain organizes concepts within the field into two groups. The researchers were just left to figure out how to label each group.

"I looked at the list, and said well, 'What do concepts like potential energy, torque, acceleration, wavelength, frequency ... have in common? At the other end of the same scale, there are things like dark matter; duality; cosmology; multiverse," explained co-author Reinhard A. Schumacher, a particle physicist at Carnegie Mellon University.

The average person might lump Schumacher's descriptions on the latter end of the spectrum as mind-bending and inexplicable, but the most important connecting factor, he realized, is that they're immeasurable.

In the brain scans, these concepts didn't indicate activity of what he calls "extent," loosely referring to placing tangible restrictions on something.

Physicists' brains, the team concluded, automatically discern between abstract items, like quantum physics, and comprehensible, measurable items like velocity and frequency.

Basically, the stuff that provokes a sense of perplexity in us non-physicists doesn't elicit thoughts of "extent" for them. That's probably why they can think about those things with relative ease, whereas we begin worrying about scale.

Speaking from experience, Schumacher says considering abstract physics ideas as a student can be very different from conceiving them as a longtime physicist.

"I think there's a sense that as physicists grow older, the concepts kind of crystallize in the mind, and you end up using them in a more efficient way," Schumacher said.

"The more you use these ideas, the more they become like old friends."

The brain scans also support that assertion. Not only did the team test faculty brain activity, they also looked at physics students' brains.

"In the old physicists who have been doing it for years," Schumacher said, "it's like the brain is more efficient. It doesn't have to light up as much, because you're going right for the thing right away."

Additionally, Just noted the professors "had more right hemisphere activation, suggesting that they had a greater number of sort of distantly associated concepts."

While a physics student might relate velocity to acceleration, it seems the professors were relating velocity to much more niche subjects activated by remote locations of the brain. Velocity of the universe's expansion, perhaps?

Just emphasizes how evolution of the brain to accommodate new, abstract ideas happens to all of us. Perhaps only theoretical physicists can easily comprehend duality or a multiverse, but people working in other fields, of course, ponder complex ideas of their own.

Chemists, for instance, have to visualize unseen orbital structures of atoms and bond configurations only drawn in textbooks. And the general public, over time, has adapted to inventions like iPhones and the cloud. Think about it. We can comprehend the cloud, which is pretty bizarre.

Imagine traveling back in time to the 1700s and explaining to someone the workings of an invisible data storage mine. They'd probably feel the way we do when we picture the quantum domain -- we'd be the "physicists" to them.

"We have this understanding now," explained Schumacher. "Even if you develop some new scientific concept, we can more or less predict what the brain is going to do with it."

For instance, during the exercise, when asked to think about oscillations, Just said some subject's brains activated sections relating to rhythmic activity. The organ had basically repurposed areas used in ancient times for general rhythms, like maybe music, to allow for modern physics concepts.

"The idea of sine waves is just a couple hundred years old," Just said. "But people have been looking at ripples on a pond forever."

Just also suggests it could become possible to actively help the brain repurpose itself, harnessing its ability to adapt. If we allow children to expand their minds through education by introducing abstract concepts sooner and more rigorously, he says, maybe one day they can readily imagine things the way scientists do.

Even further down the road, he says the findings could inform studies of mental health -- how does the brain's organizational and adaptation capabilities operate while in distress?

"I think it's the most fascinating question in the world," Just remarked. "'What is the essence of human brains? How can we make them healthier; think better?"

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Black holes and the multiverse: Decoding how physicists' brains work - CNET

Woman’s ‘quantum immortality’ theory that ‘we never really die’ freaks out TikTok users – The Mirror

Her 'quantum immortality' theory is that we never really die and that we just wake up in a parallel universe whenever you pass on in another - her theories left TikTok followers uneasy

It remains the biggest mystery of life - and when people start sharing their theories on what happens after death, things can get creepy.

TikTok user @joli.artist has left her followers spooked after a recent video she uploaded titled apocalypse...again.

Often known to discuss macabre stuff, Jolis content focuses on things like conspiracy theories and quantum physics.

In her video, she talks about the quantum immortality theory which is American physicist Hugh Everetts many-worlds interpretation.

She goes on to explain the theory that states nobody ever actually dies and that consciousness never experiences death.

Instead, whenever you die in one universe your consciousness just gets transferred into another universe where you survive.

So, for those who may be excited or intrigued about the concept of an apocalypse, sadly, if Everett is correct, youre just going to wake up somewhere else.

She continued: "So after the inevitable apocalypse occurs, you're going to wake up the next day in a new reality, and the next thing you know, you're going to find yourself on Reddit talking about 'since when did Pizza Hut have two Ts?!'

Arguing with people who are native of this new reality, talking about 'it's always had two Ts?'"

This is in reference to the many discussions on internet forums surrounding the Mandela Effect.

For those unaware of the phenomenon, it's when an individual (or, in many cases, a group of people) believe a distorted memory. Common examples are that the Monopoly man wore a monocle or that Curious George had a tail.

It is actually called the Mandela Effect because so many people believe Nelson Mandela died in prison in the 80s when he actually died in 2013.

Joli is implying that in our reality, apocalypses happen every day, which left many users feeling uneasy to say the least.

She continued: You dont believe me? Okay, its been about 65 million years since the asteroids allegedly took out the dinosaurs.

So you mean to tell me that in the last 65 million years, no other asteroids have come through the neighbourhood and taken us out?

"What I'm saying is that Earth is probably always being taken out, and our consciousness just keeps transferred to another parallel universe - and then another one, and another one.

"For all you know the apocalypse probably already happened last night..."

The video so far has got 972 thousand likes, with plenty of uncomfortable comments.

One TikTok user said: The thought of never being able to actually die is extremely depressing and giving me a headache.

Another user said: Youre over here talking about extinction level events and Im having to check on the two Ts in Pizza Hut.

Many users were quick to point out a glitch in the video, and when they watched it a second time, the glitch disappeared. Spooky stuff.

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Woman's 'quantum immortality' theory that 'we never really die' freaks out TikTok users - The Mirror

Ian MacCormack’s PhD Thesis Defense | Department of Physics | The University of Chicago – UChicago News

8:0010:00 am

Ian MacCormacksPhDThesisDefense

Thursday, October 28, 2021, 8-10 AM CT

In-person Location: MCP 201

and Via Zoom

PROBING THE SPATIAL DISTRIBUTION OF ENTANGLEMENT IN MANY-BODY QUANTUM SYSTEMS

Entanglement is the most unique and distinguishing feature of quantum mechanics, and is of fundamental importance not only to the theory of quantum information, but to the study of quantum phases of matter. While much work has been done to study the entanglement in the ground states of familiar systems like conformal field theories and gapped topological phases, slightly less attention has been paid to dynamical quantum systems and systems that lack translational invariance.

In this talk, I will first introduce some basic formalism and intuition related to entanglement in many-body quantum systems. I will then discuss an elegant means of calculating entanglement entropy and other measures in strongly interacting CFTs on curved backgrounds via the Ryu/Takyanagi formula. Next, I will introduce a general formula for the calculation of the entanglement contour, a well-behaved entanglement density function. The contour will be shown to be particularly useful for probing the dynamics of out-of-equilibrium quantum systems. With these dynamical systems in mind, I will present results from calculations of multipartite operator entanglement a state-independent entanglement measure in a many-body localized system.

Finally, I will conclude with a brief overview of the possibilities of realizing and probing entangled quantum matter using near-term quantum computers.

Committee Members:

Shinsei Ryu (Chair)

Jeffrey Harvey

Michael Levin

Mark Oreglia

Ian will be joining Menten AI, a startup that uses advanced computing methods to design protein drugs. There, he will be developing and adapting algorithms for near-term quantum computers to aid in the design of complex protein molecules.

Thesis Defense

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Ian MacCormack's PhD Thesis Defense | Department of Physics | The University of Chicago - UChicago News

New Universal Force Tested by Blasting Neutrons through Crystal – Scientific American

Mysterious forces may be a reliable trope in science fiction, but in reality, physicists have long agreed that all interactions between objects evidently arise from just four fundamental forces. Yet that has not stopped them from ardently searching for an additional, as-yet-unknown fifth fundamental force. The discovery of such a force could potentially resolve some of the biggest open questions in physics today, from the nature of dark energy to the seemingly irreconcilable differences between quantum mechanics and general relativity. Now, a recent experiment carried out at the National Institute of Standards and Technology (NIST) is offering fresh hints about a fifth forces possible character. An international collaboration of researchers used neutrons and a silicon crystal to set new limits on the strength of a potential fifth fundamental force at atomic scales. Published in Science in September, the study also includes measurements of the precise structure of both silicon crystals and neutrons themselves.

This work of fifth force searches actually goes on over the entire length scale of human observation, says NIST physicist Benjamin Heacock, the studys lead author. Because different theories predict different fifth force properties, he says, physicists have looked for its subtle effects in everything from surveys of astronomical objects like galaxies to the miniscule motions of custom-built microscopic instruments. So far, however, all searches have come up empty.

Theres a reason to think we're missing something, notes Eric Adelberger, a physicist at the University of Washington who was not involved with the study. His own team has previously looked for some of the proposed new forces and, with great experimental certainty, found nothing at all. In work recognized in 2021 with a Breakthrough Prize, they concluded that the fifth force must be much weaker than some theories predicted, or that it simply does not exist. The NIST experiment follows a similar idea but uses a novel experimental technique. The goal from the experimentalist perspective is to make strides forward in limiting [the strength of] new forces, wherever the experiment can do it, and for us that happens to be on the atomic scale, Heacock says.

Gauging relevant interactions at such scales is uniquely challenging, according to Adelberger, in part because in the atomic realm a typical object is about a million times smaller than the width of an average human hair. You have to ask, how much matter can you get within a little volume associated with that length scale? It's absolutely tiny, he says. And even the barest influence from other, known forces such as electromagnetism can easily scuttle the delicate measurements. To solve that problem, the NIST team relied on neutrons, the neutrally charged subatomic particles usually found in atomic nuclei, as neutrons are barely swayed by electromagnetic effects.

Further, the even smaller particles that make up neutrons, called quarks, are glued together so intensely by the strong interaction (one of the four known fundamental forces) that it is exceedingly difficult to physically disturb them. The strong interaction that holds quarks together in a neutron is insanely strong, so the neutron gets almost no distortion when it gets close to [other] matter, explains W. Michael Snow, a physicist at Indiana University who was also uninvolved with the new experiment. Studying the behavior of neutrons is consequently well-suited for seeking out new forces because there are not many easily measurable effects influencing these subatomic particles to begin with. One of the new studys co-authors, Albert Young, a physicist at North Carolina State University, puts it simply: At present, at our [atomic] length scale, neutrons kind of rule.

In their experiment, researchers observed neutrons that had traveled through a specially machined, nearly perfect silicon crystal made by collaborators at the RIKEN Center for Advanced Photonics in Japan. Silicon is a common material, but precision machining of silicon is a super difficult thing, underlines Michael Huber, a NIST physicist and another of the studys co-authors. Inside this perfect crystalshielded from light, heat, vibrations and other sources of external noise thanks to special NIST facilitiessilicon atoms are arranged in predictable grid-like patterns.

Neutrons traveling through that grid collided with some silicon atoms and evaded others. However, as the neutrons journey took place at the atomic scale where laws of quantum mechanics dictate that all particles behave like waves, their collisions with silicon atoms were similar to breakers crashing into a shore dotted with large, evenly spaced rocks. When a neutron bumped into a silicon atom then, this interaction created something like a neutron wave ripple. This ripple overlapped with other neutron wave ripples originating near adjacent silicon atoms, resulting in a wave interference pattern not unlike rough, choppy water along a rocky coast.

Most crucially, through clever experimental design, the researchers ensured that some of the neutron waves lapping on the silicon atom shores overlapped in a very specific way that resulted in so-called Pendellsung oscillations. These oscillations are roughly analogous to beats, and are best thought of as pulsing, alternating low-then-loud auditory effects that happen when two nearly identical sound waves are played simultaneously. In the case of this new experiment, they are akin to a distinctive but difficult to detect ripple pattern within the neutron waves breaking along the silicon seashore. Although Pendellsung interference was discovered and demonstrated a long time ago, in the 1960s at MIT, it's rarely used and most experiments are not sensitive to it, Huber explains.

His team carefully analyzed these special ripples, looking for key details about the silicon rocks and the neutron waves that crashed into them. It was as if they could tell how much water each wave carried, whether any rocks moved in the collision and more. Importantly, had an atomic-scale fifth-force interaction been at play, the details of the neutron wave interference pattern would have revealed its presence, much like how ripples in surf can follow the outline of a submerged sea wall. Although the researchers found no signs of a fifth force, they did determine a new limit, 10 times stricter than before, on how strong such a force could be.

The NIST team believes that their innovative experimental setup will allow them to make even more precise measurements in the future. They already managed, for instance, to infer details of the arrangement of quarks inside a neutron, as well as some precise motions of silicon atoms, which could prove useful for the manufacture of fine-tuned electronics. However, their quest to constrain the strength of the fifth force, a task they accomplish by combining multiple separate neutron-property measurements under certain assumptions, remains the most promising and the most difficult part of their work. We can keep and should keep searching [for the fifth force], says Yoshio Kamiya, a physicist at Tokyo University who was uninvolved with the new study. This is just one step.

Adelberger agrees, and he is eager see new results from the next phase of experimentation. There's a lot of stuff that has to go into getting this kind of a result, he says. Its a tiny effect, and researchers have to keep accounting for all other tiny effects. Both Kamiya and Adelberger think that there is room for debate on how strongly the new work should make physicists reconsider their theories about the strength of a possible fifth force. Based on the current study, Adelberger says, too many potential sources of error remain; even if the NIST team had found positive evidence of a new force, he says, it could not be considered truly definitive.

Heacock notes that his team already has ideas for advancing their work, for instance by using germanium crystals instead of silicon, in which atoms are arranged in different structures that could be even more advantageous for precise observations of neutron interference. Another goal is to seriously expand the available catalog of precise atomic scale measurements for any and all fifth forcehunting physicists to consult in their own independent work. Ideally, Heacock notes, the measurements in the new study are just a first few opening the door for the dozens more to come. I think any experiment will eventually hit a wall, but I also think we're pretty far from it, he says.

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New Universal Force Tested by Blasting Neutrons through Crystal - Scientific American

Faith Q&A with Professor Brian F. Woodfield – The Daily Universe – Universe.byu.edu

Editors note: This story appeared in theOctober 2021 edition ofThe Daily Universe Magazine.

BYU chemistry professor Brian F. Woodfield has been teaching at BYU for over 25 years and has taught thousands of students over the years. Woodfield leads a graduate research group called the Woodfield Lab Group which focuses on studying industrially and technologically important materials. Woodfield is a member of the Church of Jesus Christ of Latter-day Saints and reconciles science with faith.

Q: What made you interested in studying and pursuing a lifelong career with chemistry?

A: I grew up in a home where we wanted to understand how everything worked. My father was a pioneer in computers and he would tear things apart and put it back together. He fixed all of our cars, appliances and other things. I had a similar mindset of looking at the world and trying to understand it. This understanding wasnt limited to just computers. Im the youngest child in my family and my older brother was studying chemistry in high school and he was telling me about chemistry. It sounded really interesting and so I got hooked to chemistry.

My father was always involved in NASA and military projects. He was a chief software engineer for Apollo, so we were always interested in the space industry. He would explain how rockets worked and I became interested in low temperature physics.

Q: How is science compatible with religion?

A: Its surprising how much people misconstrue what science is about. Many people think science is the enemy. Parley P. Pratt wrote a book titled the Key to the Science of Theology in 1850. At the time, he was an apostle and had the insight that all academic fields of study are just subsets of theology of the gospel. When you take a perspective that theres religion and then you put a barrier between religion and academics, that sets up conflict. But you can take the viewpoint that the Church and religion in general, is after the truth in trying to understand the nature of God and how he interacts with us and how he is involved in our lives.

In the science field, we are trained to take theories, understand them and understand models as a matter of that discipline. If the models work, we keep it, but when it doesnt work, we then make a better model that helps us understand it even better. In the end, we are looking for truth. All these processes including looking for truth, sit under the religion and are not opposed to it.

Just because a model doesnt work right does not mean that it still isnt useful. If a model is useful and it helps us predict or understand, it doesnt have to be eternally fundamentally true but it is still considered useful.

My approach is that instead of looking for reasons of why not, I look for reasons why. Why is it consistent, how does it fit? Sometimes, that understanding can take decades to come to grips with.

Q: What are some theories that are taught in a typical scientific curriculum that are seen conventionally as incompatible with religion?

A: The classic one is evolution. Im not an expert Im not an evolutionary biologist. However, I think youll find that there isnt a single professor in biology or the BYU Life Sciences department that has a problem with evolution, because it is a model that works. It isnt inconsistent with God because it is only a mechanism by which God can do His creation and create the diversity of the world that we see.

The problem occurs when well-meaning people look at God and think they know how He did everything. Our approach in science is to discover how He did things. If were in the search of how He did things, then models dont become incompatible. They just become a way around trying to understand the truth of God and His nature. Therefore, evolution in my mind is not incompatible at all.

In my discipline of quantum mechanics, some of the fundamental principles is that there is uncertainty. We cant know exactly where the electron is, and many students will say that cant be compatible with God because God knows all things. However, I turn it around and say there are many examples of where the fundamental principle is allowing people to have choice. In the pre-existence, we fought for the ability to choose instead of being mandated to having no choice. We chose and pre-determined that we wanted to have a choice to have uncertainty. With quantum mechanics, it is not contrary, it is another example of God and the role of Jesus Christ.

Q: What are some aspects of science that people dont typically have a good understanding of that provides enlightenment rather than diminishes faith?

A: Its super relevant that in the time of COVID-19, science has taken somewhat of a beating. People think that there are ulterior motives to science, that there are conspiracy theories and that science wants a certain outcome. Science is geared around doing measurements, gathering data, explaining the data, admitting if the models are incorrect and developing new models. This is where I think people misunderstand how science works. There is no other agenda than understanding. Science does not try to support someones agenda.

In the Church, you ask questions, then you contemplate and when it makes sense, your trust in it grows. When it doesnt work, then you work it out by trying to find another path that does work. We are an experienced Church. We dont believe other people, were supposed to find out things ourselves. This is exactly how science works.

Q: Has studying science strengthened your testimony and your understanding of God?

A: There is no question that studying science and being a temple worker for the last seven years has done more to help me understand God and Christ and their roles and about the world than anything else. I can just see the hand of God in science.

Q: As a professor at BYU, one of your main goals is to strengthen the faith of the students you teach. What do you teach to your students specifically that help strengthen their faith and their understanding of God?

A: If theres a principle I want my students to learn, I want them to learn that it is okay not to understand something. You dont have to have the answers to everything right away. The journey is not about knowing the answers, its about learning how to get the answers. Its learning how to solve your own problems. I hope that what they walk away with is not how to be a chemist, but how to apply the skills we taught them using chemistry and how to apply them to any aspect of their lives, whether its being in the Church, a leader, a parent or a doctor.

Eugene England, a BYU professor who passed away about 20 years ago, said religion is a laboratory where we learn how to apply the principles of the gospel. By teaching principles of chemistry, I am hoping to teach the students how to better understand what they observe, not just in the chemistry but also in the world around them and how to apply those principles in our laboratory of our families and in the laboratory of our religion, to be better people.

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Faith Q&A with Professor Brian F. Woodfield - The Daily Universe - Universe.byu.edu

What if the universe had no beginning? – Livescience.com

In the beginning, there was well, maybe there was no beginning. Perhaps our universe has always existed and a new theory of quantum gravity reveals how that could work.

"Reality has so many things that most people would associate with sci-fi or even fantasy," said Bruno Bento, a physicist who studies the nature of time at the University of Liverpool in the U.K.

In his work, he employed a new theory of quantum gravity, called causal set theory, in which space and time are broken down into discrete chunks of space-time. At some level, there's a fundamental unit of space-time, according to this theory.

Bento and his collaborators used this causal-set approach to explore the beginning of the universe. They found that it's possible that the universe had no beginning that it has always existed into the infinite past and only recently evolved into what we call the Big Bang.

Related: Big Bang to civilization: 10 amazing origin events

Quantum gravity is perhaps the most frustrating problem facing modern physics. We have two extraordinarily effective theories of the universe: quantum physics and general relativity. Quantum physics has produced a successful description of three of the four fundamental forces of nature (electromagnetism, the weak force and the strong force) down to microscopic scales. General relativity, on the other hand, is the most powerful and complete description of gravity ever devised.

But for all its strengths, general relativity is incomplete. In at least two specific places in the universe, the math of general relativity simply breaks down, failing to produce reliable results: in the centers of black holes and at the beginning of the universe. These regions are called "singularities," which are spots in space-time where our current laws of physics crumble, and they are mathematical warning signs that the theory of general relativity is tripping over itself. Within both of these singularities, gravity becomes incredibly strong at very tiny length scales.

Related: 8 ways you can see Einstein's theory of relativity in real life

As such, to solve the mysteries of the singularities, physicists need a microscopic description of strong gravity, also called a quantum theory of gravity. There are lots of contenders out there, including string theory and loop quantum gravity.

And there's another approach that completely rewrites our understanding of space and time.

In all current theories of physics, space and time are continuous. They form a smooth fabric that underlies all of reality. In such a continuous space-time, two points can be as close to each other in space as possible, and two events can occur as close in time to each other as possible.

"Reality has so many things that most people would associate with sci-fi or even fantasy."

But another approach, called causal set theory, reimagines space-time as a series of discrete chunks, or space-time "atoms." This theory would place strict limits on how close events can be in space and time, since they can't be any closer than the size of the "atom."

Related: Can we stop time?

For instance, if you're looking at your screen reading this, everything seems smooth and continuous. But if you were to look at the same screen through a magnifying glass, you might see the pixels that divide up the space, and you'd find that it's impossible to bring two images on your screen closer than a single pixel.

This theory of physics excited Bento. "I was thrilled to find this theory, which not only tries to go as fundamental as possible being an approach to quantum gravity and actually rethinking the notion of space-time itself but which also gives a central role to time and what it physically means for time to pass, how physical your past really is and whether the future exists already or not," Bento told Live Science.

Causal set theory has important implications for the nature of time.

"A huge part of the causal set philosophy is that the passage of time is something physical, that it should not be attributed to some emergent sort of illusion or to something that happens inside our brains that makes us think time passes; this passing is, in itself, a manifestation of the physical theory," Bento said. "So, in causal set theory, a causal set will grow one 'atom' at a time and get bigger and bigger."

The causal set approach neatly removes the problem of the Big Bang singularity because, in the theory, singularities can't exist. It's impossible for matter to compress down to infinitely tiny points they can get no smaller than the size of a space-time atom.

So without a Big Bang singularity, what does the beginning of our universe look like? That's where Bento and his collaborator, Stav Zalel, a graduate student at Imperial College London, picked up the thread, exploring what causal set theory has to say about the initial moments of the universe. Their work appears in a paper published Sept. 24 to the preprint database arXiv. (The paper has yet to be published in a peer-reviewed scientific journal.)

The paper examined "whether a beginning must exist in the causal set approach," Bento said. "In the original causal set formulation and dynamics, classically speaking, a causal set grows from nothing into the universe we see today. In our work instead, there would be no Big Bang as a beginning, as the causal set would be infinite to the past, and so there's always something before."

Their work implies that the universe may have had no beginning that it has simply always existed. What we perceive as the Big Bang may have been just a particular moment in the evolution of this always-existing causal set, not a true beginning.

There's still a lot of work to be done, however. It's not clear yet if this no-beginning causal approach can allow for physical theories that we can work with to describe the complex evolution of the universe during the Big Bang.

"One can still ask whetherthis [causal set approach] can be interpreted in a 'reasonable' way, or what such dynamics physically means in a broader sense, but we showed that a framework is indeed possible," Bento said. "So at least mathematically, this can be done."

In other words, it's a beginning.

Originally published on Live Science.

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What if the universe had no beginning? - Livescience.com

IBM and Raytheon Technologies to Collaborate on Artificial Intelligence, Cryptography and Quantum Technologies – HPCwire

ARMONK, N.Y.,Oct. 11, 2021 IBM and Raytheon Technologies will jointly develop advanced artificial intelligence, cryptographic and quantum solutions for the aerospace, defense and intelligence industries, including the federal government, as part of a strategic collaboration agreement the companies announced today.

Artificial intelligence and quantum technologies give aerospace and government customers the ability to design systems more quickly, better secure their communications networks and improve decision-making processes. By combining IBMs breakthrough commercial research with Raytheon Technologies own research, plus aerospace and defense expertise, the companies will be able to crack once-unsolvable challenges.

The rapid advancement of quantum computing and its exponential capabilities has spawned one of the greatest technological races in recent history one that demands unprecedented agility and speed, saidDario Gil, senior vice president, IBM, and director of Research. Our new collaboration with Raytheon Technologies will be a catalyst in advancing these state-of-the-art technologies combining their expertise in aerospace, defense and intelligence with IBMs next-generation technologies to make discovery faster, and the scope of that discovery larger than ever.

In addition to artificial intelligence and quantum, the companies will jointly research and develop advanced cryptographic technologies that lie at the heart of some of the toughest problems faced by the aerospace industry and government agencies.

Take something as fundamental as encrypted communications, saidMark E. Russell, Raytheon Technologies chief technology officer. As computing and quantum technologies advance, existing cybersecurity and cryptography methods are at risk of becoming vulnerable. IBM and Raytheon Technologies will now be able to collaboratively help customers maintain secure communications and defend their networks better than previously possible.

The companies are building a technical collaboration team to quickly insert IBMs commercial technologies into active aerospace, defense and intelligence programs. The same team will also identify promising technologies for jointly developing long-term system solutions by investing research dollars and talent.

About IBM

IBM is a leading global hybrid cloud and AI, and business services provider, helping clients in more than 175 countries capitalize on insights from their data, streamline business processes, reduce costs and gain the competitive edge in their industries. Nearly 3,000 government and corporate entities in critical infrastructure areas such as financial services, telecommunications and healthcare rely on IBMs hybrid cloud platform and Red Hat OpenShift to affect their digital transformations quickly, efficiently, and securely. IBMs breakthrough innovations in AI, quantum computing, industry-specific cloud solutions and business services deliver open and flexible options to our clients. All of this is backed by IBMs commitment to trust, transparency, responsibility, inclusivity, and service. For more information, visitwww.ibm.com.

About Raytheon Technologies

Raytheon Technologies Corporation is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. With four industry-leading businesses Collins Aerospace Systems, Pratt & Whitney, Raytheon Intelligence & Space and Raytheon Missiles & Defense the company delivers solutions that push the boundaries in avionics, cybersecurity, directed energy, electric propulsion, hypersonics, and quantum physics. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered inWaltham, Massachusetts.

Source: IBM

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IBM and Raytheon Technologies to Collaborate on Artificial Intelligence, Cryptography and Quantum Technologies - HPCwire

Novel Electronic Component Made of Germanium Bonded With Aluminum Could Be the Key to Quantum Technology – Science Times

Scientists in TU Wien in Vienna used a special manufacturing process to bond pure germanium with aluminum that created atomically sharp interfaces, making it suitable for complex applications in quantum technology.

Phys.orgreported that it resulted in a novel nanostructure called monolithic metal-semiconductor-metal heterostructure. It demonstrates that aluminum becomes superconducting and transfers that property to the adjacent semiconductor to control electric fields, processing quantum bits. Researchers noted that one of the advantages of using this approach is enabling germanium-based quantum electronics.

(Photo: Wikimedia Commons)The large series array of Josephson junctions is arranged in a meander. Generation of ultrapure arbitrary waveforms with quantum precision.

Quantum technology is an emerging field of physics and engineering. Quantum technology expert Paul Martin definesquantum technology as a class of technology that uses the principles of quantum mechanics or the physics of sub-atomic particles, such as quantum entanglement and quantum superposition.

Humans use quantum technology in nuclear power and smartphones, using semiconductors that employ quantum physics to function. It also promises more reliable navigation and timing systems, secure communications, more accurate healthcare imaging, and more powerful computing.

In a paperpublished in 2020 in the journal Nature Reviews Materials, researchers said that geranium is an emerging versatile material to develop quantum technologies capable of encoding, processing, and transmitting quantum information. They argue that germanium-based systems could be the key building blocks for quantum technology because of their strong spin-orbit coupling and ability to host superconducting correlations.

But Dr. Masiar Sistani from the Institute for Solid State Electronics at TU Wien said it is extremely difficult to produce high-quality electrical contacts when germanium is turned into a nanoscale. So, they looked for a way to manufacture them that would result in a faster and more energy-efficient nanostructure.

ALSO READ: First Simulation of Quantum Devices in Classical Computer Hardware a Success; New Algorithm Could Setup Defining Benchmarks

In the study, titled "Al-Ge-Al Nanowire Heterostructure: From Single-Hole Quantum Dot to Josephson Effect," published in Advanced Materials, researchers found that temperature plays a key role in achieving their goal.

When the nanometer-size germanium and aluminum are brought into contact and heated, their atoms begin to diffuse into neighboring materials in which atoms of germanium move to aluminum and vice versa, Phys.org reported. When they raised the temperature to 350 degrees Celsius, germanium atoms diffused off the edge of the nanowire, creating empty spaces where aluminum could penetrate.

This special manufacturing process forms a perfect single crystal wherein aluminum atoms are arranged in a uniform pattern, as seen under the transmission electron microscope. Not a single atom is disordered in contrast to conventional methods where electrical contacts are applied to a semiconductor.

Researchers were able to show that this monolithic metal-semiconductor heterostructure of germanium and aluminum demonstrates superconductivity in pure germanium for the first time.

More so, Dr. Masiar Sistani said that it shows that this nanostructure can be switched into different operating states using electrical fields, which means the germanium quantum dot can be superconducting and insulating such as the Josephson transistor.

This novel nanostructure combines various advantages for quantum technology, such as high carrier mobility, excellent manipulability, and it fits well with established microelectronics technologies.

RELATED ARTICLE: Direct Communication Network Developed, Secure and Fast Data Transmission in 15 Users Possible with Quantum Technology

Check out more news and information on Quantum Physics in Science Times.

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Novel Electronic Component Made of Germanium Bonded With Aluminum Could Be the Key to Quantum Technology - Science Times