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Category Archives: Quantum Computing

New laboratory to explore the quantum mysteries of nuclear materials – EurekAlert

Replete with tunneling particles, electron wells, charmed quarks and zombie cats, quantum mechanics takes everything Sir Isaac Newton taught about physics and throws it out the window.

Every day, researchers discover new details about the laws that govern the tiniest building blocks of the universe. These details not only increase scientific understanding of quantum physics, but they also hold the potential to unlock a host of technologies, from quantum computers to lasers to next-generation solar cells.

But theres one area that remains a mystery even in this most mysterious of sciences: the quantum mechanics of nuclear fuels.

Until now, most fundamental scientific research of quantum mechanics has focused on elements such as silicon because these materials are relatively inexpensive, easy to obtain and easy to work with.

Now, Idaho National Laboratory researchers are planning to explore the frontiers of quantum mechanics with a new synthesis laboratory that can work with radioactive elements such as uranium and thorium.

An announcement about the new laboratory appears online in the journalNature Communications.

Uranium and thorium, which are part of a larger group of elements called actinides, are used as fuels in nuclear power reactors because they can undergo nuclear fission under certain conditions.

However, the unique properties of these elements, especially the arrangement of their electrons, also means they could exhibit interesting quantum mechanical properties.

In particular, the behavior of particles in special, extremely thin materials made from actinides could increase our understanding of phenomena such as quantum wells and quantum tunneling (see sidebar).

To study these properties, a team of researchers has built a laboratory around molecular beam epitaxy (MBE), a process that creates ultra-thin layers of materials with a high degree of purity and control.

The MBE technique itself is not new, said Krzysztof Gofryk, a scientist at INL. Its widely used. Whats new is that were applying this method to actinide materials uranium and thorium. Right now, this capability doesnt exist anywhere else in the world that we know of.

The INL team is conducting fundamental research science for the sake of knowledge but the practical applications of these materials could make for some important technological breakthroughs.

At this point, we are not interested in building a new qubit [the basis of quantum computing], but we are thinking about which materials might be useful for that, Gofryk said. Some of these materials could be potentially interesting for new memory banks and spin-based transistors, for instance.

Memory banks and transistors are both important components of computers.

To understand how researchers make these very thin materials, imagine an empty ball pit at a fast-food restaurant. Blue and red balls are thrown in the pit one at a time until they make a single layer on the floor. But that layer isnt a random assortment of balls. Instead, they arrange themselves into a pattern.

During the MBE process, the empty ball pit is a vacuum chamber, and the balls are highly pure elements, such as nitrogen and uranium, that are heated until individual atoms can escape into the chamber.

The floor of our imaginary ball pit is, in reality, a charged substrate that attracts the individual atoms. On the substrate, atoms order themselves to create a wafer of very thin material in this case, uranium nitride.

Back in the ball pit, weve created layer of blue and red balls arranged in a pattern. Now we make another layer of green and orange balls on top of the first layer.

To study the quantum properties of these materials, Gofryk and his team will join two dissimilar wafers of material into a sandwich called a heterostructure. For instance, the thin layer of uranium nitride might be joined to a thin layer of another material such as gallium arsenide, a semiconductor. At the junction between the two different materials, interesting quantum mechanical properties can be observed.

We can make sandwiches of these materials from a variety of elements, Gofryk said. We have lots of flexibility. We are trying to think about the novel structures we can create with maybe some predicted quantum properties.

We want to look at electronic properties, structural properties, thermal properties and how electrons are transported through the layers, he continued. What will happen if you lower the temperature and apply a magnetic field? Will it cause electrons to behave in certain way?

INL is one of the few places where researchers can work with uranium and thorium for this type of science. The amounts of the radioactive materials and the consequent safety concerns will be comparable to the radioactivity found in an everyday smoke alarm.

INL is the perfect place for this research because were interested in this kind of physics and chemistry, Gofryk said.

In the end, Gofryk hopes the laboratory will result in breakthroughs that help attract attention from potential collaborators as well as recruit new employees to the laboratory.

These actinides have such special properties, he said. Were hoping we can discover some new phenomena or new physics that hasnt been found before.

In 1900, German physicist Max Planck first described how light emitted from heated objects, such as the filament in a light bulb, behaved like particles.

Since then, numerous scientists including Albert Einstein and Niels Bohr have explored and expanded upon Plancks discovery to develop the field of physics known as quantum mechanics. In short, quantum mechanics describes the behavior of atoms and subatomic particles.

Quantum mechanics is different than regular physics, in part, because subatomic particles simultaneously have characteristics of both particles and waves, and their energy and movement occur in discrete amounts called quanta.

More than 120 years later, quantum mechanics plays a key role in numerous practical applications, especially lasers and transistors a key component of modern electronic devices. Quantum mechanics also promises to serve as the basis for the next generation of computers, known as quantum computers, which will be much more powerful at solving certain types of calculations.

Uranium, thorium and the other actinides have something in common that makes them interesting for quantum mechanics: the arrangement of their electrons.

Electrons do not orbit around the nucleus the way the earth orbits the sun. Rather, they zip around somewhat randomly. But we can define areas where there is a high probability of finding electrons. These clouds of probability are called orbitals.

For the smallest atoms, these orbitals are simple spheres surrounding the nucleus. However, as the atoms get larger and contain more electrons, orbitals begin to take on strange and complex shapes.

In very large atoms like uranium and thorium (92 and 90 electrons respectively), the outermost orbitals are a complex assortment of party balloon, jelly bean, dumbbell and hula hoop shapes. The electrons in these orbitals are high energy. While scientists can guess at their quantum properties, nobody knows for sure how they will behave in the real world.

Quantum tunneling is a key part of any number of phenomena, including nuclear fusion in stars, mutations in DNA and diodes in electronic devices.

To understand quantum tunneling, imagine a toddler rolling a ball at a mountain. In this analogy, the ball is a particle. The mountain is a barrier, most likely a semiconductor material. In classical physics, theres no chance the ball has enough energy to pass over the mountain.

But in the quantum realm, subatomic particles have properties of both particles and waves. The waves peak represents the highest probability of finding the particle. Thanks to a quirk of quantum mechanics, while most of the wave bounces off the barrier, a small part of that wave travels through if the barrier is thin enough.

For a single particle, the small amplitude of this wave means there is a very small chance of the particle making it to the other side of the barrier.

However, when large numbers of waves are travelling at a barrier, the probability increases, and sometimes a particle makes it through. This is quantum tunneling.

Quantum wells are also important, especially for devices such as light emitting diodes (LEDs) and lasers.

Like quantum tunneling, to build quantum wells, you need alternating layers of very thin (10 nanometers) material where one layer is a barrier.

While electrons normally travel in three dimensions, quantum wells trap electrons in two dimensions within a barrier that is, for practical purposes, impossible to overcome. These electrons exist at specific energies say the precise energies needed to generate specific wavelengths of light.

About Idaho National LaboratoryBattelle Energy Alliance manages INL for the U.S. Department of Energys Office of Nuclear Energy. INL is the nations center for nuclear energy research and development,and alsoperforms research in each of DOEs strategic goal areas: energy, national security, science and the environment. For more information, visitwww.inl.gov.Follow us on social media:Twitter,Facebook,InstagramandLinkedIn.

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Cancer to Be Treated as Easily as Common Cold When Humans Crack Quantum Computing – Business Wire

DUBAI, United Arab of Emirates--(BUSINESS WIRE)--Breakthroughs in quantum computing will enable humans to cure diseases like cancer, Alzheimers, and Parkinsons as easily as we treat the common cold.

That was one of the major insights to emerge from the Dubai Future Forum, with renowned theoretical physicist Dr. Michio Kaku telling the worlds largest gathering of futurists that humanity should brace itself for major transformations in healthcare.

The forum concluded with a call for governments to institutionalize foresight and engrain it within decision making.

Taking place in Dubai, UAE at the Museum of the Future, Amy Webb, CEO of Future Today Institute, criticized nations for being too pre-occupied with the present and too focused on creating white papers, reports and policy recommendations instead of action.

Nowism is a virus. Corporations and governments are infected, she said.

One panel session heard how humans could be ready to test life on the Moon in just 15 years and be ready for life on Mars in another decade. Sharing his predictions for the future, Dr. Kaku also said there is a very good chance humans will pick up a signal from another intelligent life form this century.

Dr. Jamie Metzl, Founder and Chair, OneShared.World, urged people to eat more lab-grown meat to combat global warming and food insecurity.

If we are treating them like a means to an end of our nutrition, wouldnt it be better instead of growing the animal, to grow the meat? he said.

Among the 70 speakers participating in sessions were several UAE ministers. HE Mohammad Al Gergawi, UAE Minister of Cabinet Affairs, Vice Chairman, Board of Trustees and Managing Director of the Dubai Future Foundation, said ministers around the world should think of themselves as designers of the future. Our stakeholders are 7.98 billion people around the world, he noted.

Dubais approach to foresight was lauded by delegates, including HE Omar Sultan Al Olama, UAE Minister of State for Artificial Intelligence, Digital Economy, and Remote Work Applications, who said: What makes our city and nation successful is not natural resources, but a unique ability to embrace all ideas and individuals.

More than 30 sessions covered topics including immortality, AI sentience, climate change, terraforming, genome sequencing, legislation, and the energy transition.

*Source: AETOSWire

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There’s a New Quantum Computing Record: Control of a 6-Qubit Processor in Silicon – ScienceAlert

Another record has been broken on the way to fully operational and capable quantum computers: the complete control of a 6-qubit quantum processor in silicon.

Researchers are calling it "a major stepping stone" for the technology.

Qubits (or quantum bits) are the quantum equivalents of classical computing bits, only they can potentially process much more information. Thanks to quantum physics, they can be in two states at once, rather than just a single 1 or 0.

The difficulty is in getting a lot of qubits to behave as we need them to, which is why this jump to six is important. Being able to operate them in silicon the same material used in today's electronic devices makes the technology potentially more viable.

"The quantum computing challenge today consists of two parts," says quantum computing researcher Stephan Philips from the Delft University of Technology in the Netherlands. "Developing qubits that are of good enough quality, and developing an architecture that allows one to build large systems of qubits."

"Our work fits into both categories. And since the overall goal of building a quantum computer is an enormous effort, I think it is fair to say we have made a contribution in the right direction."

The qubits are made from individual electrons fixed in a row, 90 nanometers apart (a human hair is around 75,000 nanometers in diameter). This line of 'quantum dots' is placed in silicon, using a structure similar to the transistors used in standard processors.

By making careful improvements to the way the electrons were prepared, managed, and monitored, the team was able to successfully control their spin the quantum mechanical property that enables the qubit state.

The researchers were also able to create logic gates and entangle systems of two or three electrons, on demand, with low error rates.

Researchers used microwave radiation, magnetic fields, and electric potentials to control and read electron spin, operating them as qubits, and getting them to interact with each other as required.

"In this research, we push the envelope of the number of qubits in silicon, and achieve high initialization fidelities, high readout fidelities, high single-qubit gate fidelities, and high two-qubit state fidelities," says electrical engineer Lieven Vandersypen, also from the Delft University of Technology.

"What really stands out though is that we demonstrate all these characteristics together in one single experiment on a record number of qubits."

Up until this point, only 3-qubit processors have been successfully built in silicon and controlled up to the necessary level of quality so we're talking about a major step forward in terms of what's possible in this type of qubit.

There are different ways of building qubits including on superconductors, where many more qubits have been operated together and scientists are still figuring out the method that might be the best way forward.

The advantage of silicon is that the manufacturing and supply chains are all already in place, meaning the transition from a scientific laboratory to an actual machine should be more straightforward. Work continues to keep pushing the qubit record even higher.

"With careful engineering, it is possible to increase the silicon spin qubit count while keeping the same precision as for single qubits," says electrical engineer Mateusz Madzik from the Delft University of Technology.

"The key building block developed in this research could be used to add even more qubits in the next iterations of study."

The research has been published in Nature.

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Cleveland Clinic Selected as Founding Partner in Greater Washington, D.C., Quantum Computing Hub – Cleveland Clinic Newsroom

Cleveland Clinic has been selected as a founding partner and the leading healthcare system in a new initiative meant to spur collaboration and innovation in the quantum computing industry.

Based in Greater Washington D.C., Connected DMV and a cross-sector coalition of partners are developing the new Life Sciences and Healthcare Quantum Innovation Hub to prepare the industry for the burgeoning quantum era and align with key national and global efforts in life sciences and quantum technologies.

The U.S. Department of Commerces Economic Development Administration (EDA) has awarded more than $600,000 to Connected DMV for development of the Hub. This will include the formation of a collaboration of at least 25 organizations specializing in quantum end-use and technology build.

Cleveland Clinic was invited to join the Hub because of its work in advancing medical research through quantum computing. As the lead healthcare system in the coalition, Cleveland Clinic will help define quantums role in the future of healthcare and disseminate education to other health systems on its possibilities.

We believe quantum computing holds great promise for accelerating the pace of scientific discovery, said Lara Jehi, M.D., M.H.C.D.S., Cleveland Clinics Chief Research Information Officer. As an academic medical center, research, innovation and education are an integral part of Cleveland Clinics mission. Quantum, AI and other emerging technologies have the potential to revolutionize medicine, and we look forward to working with partners across healthcare and life sciences to solve complex medical problems and change the course of diseases like cancer, heart conditions and neurodegenerative disorders.

Last year, Cleveland Clinic announced a 10-year partnership with IBM to establish the Discovery Accelerator, a joint center focused on easing traditional bottlenecks in medical research through innovative technologies such as quantum computing, hybrid cloud and artificial intelligence. The partnership leverages Cleveland Clinics medical expertise with the technology expertise of IBM including its leadership in quantum technology which recently resulted in the Breakthrough Award in Fundamental Physics for quantum information science. The Discovery Accelerator will allow Cleveland Clinic to contribute to Connected DMVs Hub by advancing the pace of discovery with the first private sector on-premises Quantum System One being installed on Cleveland Clinics main campus.

Innovation is always iterative, and requires sustained collaboration between research, development and technology, and the industries that will benefit from the value generated, said George Thomas, Chief Innovation Officer of Connected DMV and lead of its Potomac Quantum Innovation Center initiative. Quantum has the potential to have a substantive impact on our society in the near future, and the Life Sciences and Healthcare Quantum Innovation Hub will serve as the foundation for sustained focus and investment to accelerate and scale our path into the era of quantum.

The Hub will be part of Connected DMVs Potomac Quantum Innovation Center initiative, which aims to: accelerate quantum investment, and research and development; develop an equitable and scalable talent pipeline; and scale collaboration between the public sector, academia, industry, community, and investors to accelerate the value of quantum. The Quantum Innovation Hubs are a part of this initiative to focus on accelerating quantum investment, research and development in key industry sectors.

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Physics – Breakthrough Prize for the Physics of Quantum Informationand of Cells – Physics

The idea of using the laws of quantum mechanics for computation was proposed in 1982 by Richard Feynman. But Deutschwho is at the University of Oxford, UKis often credited with establishing the conceptual foundations of the discipline. Computer bits that obey quantum principles, such as superposition and entanglement, can carry out some calculations much faster and more efficiently than ones that obey classical rules. In 1985 Deutsch postulated that a device made from such quantum bits (qubits) could be made universal, meaning it could simulate any quantum system. Deutsch framed his proposal in the context of the many worlds interpretation of quantum mechanics (of which he is an advocate), likening the process of one quantum computation to that of many parallel computations occurring simultaneously in entangled worlds.

To motivate further work in quantum computing, researchers at the time needed problems that a quantum computer could uniquely solve. I remember conversations in the early 1990s in which people would argue about whether quantum computers would ever be able to do anything really useful, says quantum physicist William Wootters of Williams College, Massachusetts, who has worked with Bennett and Brassard on quantum cryptography problems. Then suddenly Peter Shor devised a quantum algorithm that could indeed do something eminently useful.

In 1995 Shor, who is now at the Massachusetts Institute of Technology, developed an algorithm that could factorize large integersdecompose them into products of primesmuch more efficiently than any known classical algorithm. In classical computation, the time that it takes to factorize a large number increases exponentially as the number gets larger, which is why factorizing large numbers provides the basis for todays methods for online data encryption. Shors algorithm showed that for a quantum computer, the time needed increases less rapidly, making factorizing large numbers potentially more feasible. This theoretical demonstration immediately injected energy into the field, Wootters says. Shor has also made important contributions to the theory of quantum error correction, which is more challenging in quantum than in classical computation (see Focus: LandmarksCorrecting Quantum Computer Errors).

Without Deutsch and Shor we would not have the field of quantum computation as we know it today, says quantum theorist Artur Ekert of the University of Oxford, who considers Deutsch his mentor. David defined the field, and Peter took it to an entirely different level by discovering the real power of quantum computation and by showing that it actually can be done.

Data encryption is the topic cited for the award of Bennett (IBMs Thomas J. Watson Research Center in Yorktown Heights, New York) and Brassard (University of Montreal, Canada). In 1984 the pair described a protocol in which information could be encoded in qubits and sent between two parties in such a way that the information could not be read by an eavesdropper without that intervention being detected. Like quantum computing, this quantum cryptographic scheme relies on entangling qubits, meaning that their properties are interdependent, no matter how far apart they are separated. This BB84 protocol and similar quantum encryption schemes have now been used for secure transmission of data along optical networks and even via satellite over thousands of kilometers (see Focus: Intercontinental, Quantum-Encrypted Messaging and Video).

In 1993 Bennett and Brassard also showed how entanglement may be harnessed for quantum teleportation, whereby the state of one qubit is broadcast to another distant one while the original state is destroyed (see Focus: LandmarksTeleportation is not Science Fiction). This process too has applications in quantum information processing.

I am really gratified by this award because it recognizes the field of quantum information and computation, Shor says. Deutsch echoes the sentiment: Im glad that [quantum information] is now officially regarded as fundamental physics rather than as philosophy, mathematics, computer science, or engineering.

Deutsch, Shor, Bennett, and Brassard deserve recognition for their work, and Im delighted that theyre getting it, Wootters says. He notes that their research not only inspired the development of quantum technologies, but also influenced new research in quantum foundations. Quantum information theory views quantum theory through a novel lens and opens up a new perspective from which to address foundational questions.

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Schools get creative with computer science teaching as Ohios state standards try to keep with the times – Dayton Daily News

Nearly all schools have computer-based classes, but many dont offer even foundational classes on programming, let alone advanced computing.

A 2022 study by the Code.org Advocacy Coalition found that 53.4% of Ohio high school students attend a school that offers foundational computer science classes such as basic programming. However, only 22% of urban school districts offered foundational computer science courses compared to 57% of suburban schools.

In 2019, Ohio was ranked 37th among all 50 states in the number of college computer science graduates, as a percentage of total college graduates at all levels (Kentucky was ranked 1st), and 44th in growth in number of computer science graduates over five years, according to data from the U.S. Census Bureau.

Ohio updates curriculum

Ohio recently invested heavily in changing this. Last month, the Ohio State Board of Education approved an updated Model Curriculum for Computer Science. The 400 pages of guidance for local districts recommends students as early as kindergarten learning to protect passwords and understand the basics of artificial intelligence, and high schoolers using cybersecurity concepts like cluster computing and quantum key distribution.

The change represents a dramatic update from previous educational standards, initiated by the state last year. Ohio currently has over 20,000 open computer science positions, said Bryan Stewart, workforce director at the Montgomery County Educational Service Center. As Ohio prepares to welcome tech manufacturing giants like Intel, that gap may get worse.

Thats a question that we play with when we look at the future of Ohios workforce, Stewart said. We have to ask ourselves, Will Dayton, will the Miami Valley be a haven for startups? Will we see tech companies born out of the minds of our kids? If we want that to be a reality, if we want venture capital to speed into Ohio, you cant do that unless you teach kids about computer science.

Stebbins High School in the Mad River School District takes a different approach. Many classes through the schools Career Technology Program incorporate computer science in a tangential way, such as engineering and robotics, or graphic design and digital media. Students learn to work with several systems, such as SolidWorks, AutoCAD, and Adobe Photoshop, said Career Tech Director and Assistant Principal Jeff Berk.

We also have career tech courses at our middle school, Berk said, adding that the state of Ohio supports career tech education. We are able to stay up to industry standards within all of our programs, and making sure our students are prepared, and what theyre going to see (in the workplace), they had the chance to see it here.

In recent years, Mad River discontinued a cybersecurity career path based on lack of enrollment and student interest, Berk said, in favor of a Teacher Academy. However, juniors and seniors can also participate in the Tech Prep program, where students do hands-on IT work throughout the building, troubleshooting everything from printers to student laptops.

Obstacles to improvement

Improving computer science education faces several hurdles. One issue governments have grappled with is that the field evolves so quickly that its difficult for educators to keep up, even at the local level.

I think we do the best we can. But computer science changes so quickly. Its not like math where algebra is the same now as it was 100 years ago, Schultz said. Now weve got standard things like quantum computing and artificial intelligence and machine learning, things that werent even spoken of five years ago. So its tough for schools, tough for anybody with a limited budget, to try and stay on top of that.

The State Committee on Computer Science, formed by this years state budget, outlined 10 recommendations in August that, if implemented, would help make Ohio a national leader in computer science education and workforce pipeline, state officials said. Among these include a commitment by the state to fund computer science courses at 1% of the K-12 funding formula, about $94 million today, in future years, as well as making a single credit computer science course a high school graduation requirement.

Funding is important because hardware that educators have access to sometimes lags behind what is used in the industry, Berk said.

A lot of times in education, the access to technology that students have sometimes is outdated, he said. Thats one of the major challenges. Especially in high school, when they go out into to the workforce, that theyre having that opportunity to work with machines and computers that are going to be at the same level

Finding teachers is also huge problem, as often individuals who are qualified to teach the next generation about computer science have no financial incentive to do so.

The majority of them realize that they can go out and find a job in the industry and make double what they would make as a teacher, said Schultz.

Minorities, girls lag

To address teacher shortages, the state committee recommended Teach CS grants that fund training for teachers to obtain computer science licensure, and establishing an Office of Computer Science to support the over 600 Ohio school districts in implementing their own computer science programs.

Stebbins Teacher Academy was created both to address the teacher shortage in the general K-12 sphere and supply a program that matched students interests, Berk said.

Were doing what we can do to help supply the region with the workers that we need for all the different professions, he said.

The states Model Curriculum also includes provisions for equitable access to computer science education. Schools in lower-income neighborhoods and schools with large numbers of minority students often offer only rudimentary user skills rather than problem-solving and computational thinking, according to the curriculum.

Among students who took the Advanced Placement Computer Science exam in 2020, only 6% of students were Black or African American, 16% were Hispanic or Latino and 0.5% were Native American, according to data from the College Board, which administers AP tests.

Female students are also underrepresented in high school computer science classes, accounting for just 34% of AP Computer Science Principles participants and 25% of AP Computer Science A participants, per College Board data. During the 2020-21 school year, female students accounted for only 27% of over 3,700 AP Computer Science exams taken in Ohio.

In order to reach female and minority students, the state board recommends using examples that are equally relevant to both males and females, and tying problems to students everyday lives.

Particularly for young learners and beginners, visual, block-based programming languages help address language and syntax barriers, according to state documents.

Getting more girls and minority students into coding is useful, not just for creating a diverse workforce, but for addressing the huge need for computer-savvy people in todays industry. After-school programs like Girls Who Code also are working to bridge this gap, but the model curriculum aims to tackle these problems inside the classroom.

Private sector companies, the industry side of things, they really want to see a more diverse workforce. But theyre never going to have them unless we start earlier and try to start breaking down some of these barriers or perceptions, Stewart said.

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