Feature Channels: Quantum Mechanics

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The U.S. Department of Energy (DOE) announced recently $73 million in funding to advance quantum information science research to aid in better understanding the physical world and harness nature to benefit people and society. Aaron Rury, Ph.D., assistant professor of chemistry in Wayne State’s College of Liberal Arts and Science, is the recipient of one of 29 projects funded by the DOE.

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New research paves the way to a systematic way to design quantum algorithms that outperform conventional algorithms. The research involves logic gates, the fundamental building blocks of conventional digital computing and quantum computing systems. This new research is the first attempt to determine the number of logic gates that quantum states need to process information.

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Story tips: Sensing oil leaks, 3D prints in space, more fuel from ethanol, Arctic modeling boost, making isotopes faster and nano-enabled microscopy

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Chaos, to a point: A new Cornell-led study confirms the chaotic behavior of electrons in “strange” metals has a limit established by the laws of quantum mechanics.

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The U.S. Department of Energy (DOE) announced $73 million in funding to advance quantum information science (QIS) research to help scientists better understand the physical world and harness nature to benefit people and society.

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A team of scientists at Los Alamos National Laboratory propose that modulated quantum metasurfaces can control all properties of photonic qubits, a breakthrough that could impact the fields of quantum information, communications, sensing and imaging, as well as energy and momentum harvesting. The results of their study were released yesterday in the journal Physical Review Letters, published by the American Physical Society.

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The U.S. Department of Energy (DOE) today announced $28 million in funding for five research projects to develop software that will fully unleash the potential of DOE supercomputers to make new leaps in fields such as quantum information science and chemical reactions for clean energy applications.

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Scientist demonstrated a new way of observing atoms as they move in a tiny quantum electronic switch as it operates. Along the way, they discovered a new material state that could pave the way for faster, more energy-efficient computing.

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The quantum movements of a small glass sphere could be controlled for the first time in Vienna by combining microscopy with control engineering, setting the course for future quantum technologies.A football is not a quantum particle. There are crucial differences between the things we know from everyday life and tiny quantum objects.

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Scientists have devised a means of achieving improved information processing with a new technology for effective gate operation. This technology has applications in classical electronics as well as quantum computing, communications and sensing.

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Highlights of the two-hour visit included behind-the-scenes looks at one of the most powerful X-ray sources on the planet and at the construction of the world’s largest digital camera for astronomy. She also joined presentations of the lab’s research in machine learning, quantum technology and climate science and engaged in discussions about diversity, equity and inclusion at SLAC.

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Aluminum-26 has a quantum state difficult to study in a lab. Scientists instead use ion beam-target interactions to create an environment that adds a neutron to the radioactive isotope Silicon-26 to study excited quantum states in Silicon-27. This approach is possible because of the symmetry between protons and neutrons. This provides rare insight into processes in stars.

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Researchers from the National University of Singapore have come up with two new ways to protect quantum communications from attacks - the first is an ultra-secure cryptography protocol, and the other is a first-of-its-kind quantum power limiter device. These two approaches hold promise to ensure information systems used for critical services such as banking and healthcare can hold up any potential future attacks.

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New research shows how it is possible to create heavy fermions with cheap, non-radioactive materials. To do this, the researchers used graphene.

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An interdisciplinary team of Cornell and Harvard University researchers developed a machine learning tool to parse quantum matter and make crucial distinctions in the data, an approach that will help scientists unravel the most confounding phenomena in the subatomic realm.

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High-performance computer users in the market for a quantum annealing machine or looking for ways to get the most out of one they already have will benefit from a new, open-source software tool for evaluating these emerging platforms at the individual qubit level.

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Research from the McKelvey School of Engineering at Washington University in St. Louis has found a missing piece in the puzzle of optical quantum computing. Jung-Tsung Shen, associate professor in the Department of Electrical & Systems Engineering, has developed a deterministic, high-fidelity two-bit quantum logic gate that takes advantage of a new form of light.

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Researchers from China present the fastest real-time quantum random number generators to date to make the devices quicker and more portable. The device combines a state-of-the-art photonic integrated chip with optimized real-time postprocessing for extracting randomness from quantum entropy source of vacuum states.

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States of local broken symmetry at high temperature—observed in several materials, including one with a metal-insulator transition, an iron-based superconductor, and an insulating mineral part of the Earth's upper mantle—may enable the technologically relevant properties arising at much-lower temperature.

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The U.S. Department of Energy has selected Iowa State's Srimoyee Sen for an early career award that will help her study nuclear physics and quantum phenomena. The research could lead to the discovery of new materials that could one day contribute to speedy quantum computing or other applications.

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An international team of physicists led by the University of Minnesota has discovered that a unique superconducting metal is more resilient when used as a very thin layer. The research is the first step toward a larger goal of understanding unconventional superconducting states in materials, which could possibly be used in quantum computing in the future.

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Quantum computers could outperform classical computers at many tasks, but only if the errors that are an inevitable part of computational tasks are isolated rather than widespread events. Now, researchers at the University of Wisconsin–Madison have found evidence that errors are correlated across an entire superconducting quantum computing chip — highlighting a problem that must be acknowledged and addressed in the quest for fault-tolerant quantum computers.

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The phenomenon of quantum nonlocality defies our everyday intuition. It shows the strong correlations between several quantum particles some of which change their state instantaneously when the others are measured, regardless of the distance between them. While this phenomenon has been confirmed for slow moving particles, it has been debated whether nonlocality is preserved when particles move very fast at velocities close to the speed of light, and even more so when those velocities are quantum mechanically indefinite.

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Free Live Webinar August 3 – 6, 2021 9:00 am – 12:30 pm (PST/AZ) 4 sessions 20 speakers

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In research published today in Nature Communications, engineers from Rensselaer Polytechnic Institute demonstrated how, when the TMDC materials they make are stacked in a particular geometry, the interaction that occurs between particles gives researchers more control over the devices’ properties. Specifically, the interaction between electrons becomes so strong that they form a new structure known as a correlated insulating state. This is an important step, researchers said, toward developing quantum emitters needed for future quantum simulation and computing.

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Using an ultrafast transmission electron microscope, researchers from the Technion - Israel Institute of Technology have, for the first time, recorded the propagation of combined sound and light waves in atomically thin materials.

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Researchers have discovered a new electronic property at the frontier between the thermal and quantum sciences in a specially engineered metal alloy – and in the process identified a promising material for future devices that could turn heat on and off with the application of a magnetic “switch.”

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Scientists at Empa and EPFL have identified a new type of defect as the most common source of disorder in on-surface synthesized graphene nanoribbons, a novel class of carbon-based materials that may prove extremely useful in next-generation electronic devices. The researchers identified the atomic structure of these so-called "bite" defects and investigated their effect on quantum electronic transport. These kinds of defective zigzag-edged nanoribbons may provide suitable platforms for certain applications in spintronics.

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In an open access paper published in Science Advances, Johns Hopkins physicists and colleagues at Rice University, the Vienna University of Technology (TU Wien), and the National Institute of Standards and Technology (NIST), present experimental evidence of naturally occurring quantum criticality in a material.

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Researchers from Georgia Tech and the University of Tennessee–Knoxville uncovered hidden and unexpected quantum behavior in a simple iron-iodide material (FeI2) discovered almost a century ago. The new insights were enabled using neutron scattering experiments and theoretical physics calculations at the Department of Energy’s Oak Ridge National Laboratory. The team’s findings solves a 40-year-old puzzle about the material’s mysterious behavior and could be used as a map to unlock a treasure trove of quantum phenomena in other materials.

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A new theorem from the field of quantum machine learning has poked a major hole in the accepted understanding about information scrambling.

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Sergei Kalinin, a scientist and inventor at the Department of Energy’s Oak Ridge National Laboratory, has been elected a Fellow of the Microscopy Society of America professional society.

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Five new innovators will be joining Chain Reaction Innovations, the entrepreneurship program at Argonne National Laboratory, as part of the elite program’s fifth cohort to develop clean energy startups that will reduce greenhouse gas emissions and increase U.S. competitiveness in emerging energy technologies.

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Scientists from the University of Bristol’s Quantum Engineering Technology Labs (QETLabs) have developed an algorithm that provides valuable insights into the physics underlying quantum systems - paving the way for significant advances in quantum computation and sensing, and potentially turning a new page in scientific investigation.

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Researchers at Argonne National Laboratory, the University of Chicago and scientific organizations in Japan, Korea and Hungary have established an invaluable resource for those looking to discover new quantum systems.

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Scientists mapped the electronic states in an exotic superconductor. The maps point to the composition range necessary for topological superconductivity, a state that could enable more robust quantum computing.

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Today, the U.S. Department of Energy (DOE) announced $11 million for ten projects in Quantum Information Science (QIS) with relevance to fusion and plasma science.

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Fiber optic technology is the holy grail of high-speed, long-distance telecommunications. Still, with the continuing exponential growth of internet traffic, researchers are warning of a capacity crunch. In AVS Quantum Science, researchers show how quantum-enhanced receivers could play a critical role in addressing this challenge. The scientists developed a method to enhance receivers based on quantum physics properties to dramatically increase network performance while significantly reducing the error bit rate and energy consumption.

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Today the U.S. Department of Energy (DOE) announced a plan to provide $25 million for basic research toward the development of a quantum internet.

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The U.S. Department of Energy’s (DOE) Argonne National Laboratory is a founding partner of Duality, the first startup accelerator program in the nation that is dedicated to startup companies focused on quantum science and technology — a rapidly emerging area that is poised to drive transformative advances across multiple industries.

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The University of Chicago’s Polsky Center for Entrepreneurship and Innovation and the Chicago Quantum Exchange today announced the launch of Duality, the first accelerator program in the nation that is exclusively dedicated to startup companies focused on quantum science and technology—a rapidly emerging area that is poised to drive transformative advances across multiple industries.

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Swansea University physicists, as leading members of the ALPHA collaboration at CERN, have demonstrated laser cooling of antihydrogen atoms for the first time.

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Using complementary computing calculations and neutron scattering techniques, researchers from the Department of Energy’s Oak Ridge and Lawrence Berkeley national laboratories and the University of California, Berkeley, discovered the existence of an elusive type of spin dynamics in a quantum mechanical system.

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Researchers with the CERN-based ALPHA collaboration have announced the world’s first laser-based manipulation of antimatter, leveraging a made-in-Canada laser system to cool a sample of antimatter down to near absolute zero. The achievement, detailed in an article published today and featured on the cover of the journal Nature, will significantly alter the landscape of antimatter research and advance the next generation of experiments.

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Armonk, N.Y. and Cleveland, OH, March 30, 2021: Cleveland Clinic and IBM have announced a planned 10-year partnership to establish the Discovery Accelerator, a joint Cleveland Clinic - IBM center with the mission of fundamentally advancing the pace of discovery in healthcare and life sciences through the use of high performance computing on the hybrid cloud, artificial intelligence (AI) and quantum computing technologies.

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A new project at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility will use a quantum simulator to model experiments at the Electron-Ion Collider. This device uses quantum computing to simulate carefully crafted models of experiments that are being proposed for the collider.

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New research has demonstrated that a magnetic uranium compound can have strong thermoelectric properties, generating four times the transverse voltage from heat than the previous record in a cobalt-manganese-gallium compound.

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Bright semiconductor nanocrystals known as quantum dots give QLED TV screens their vibrant colors. But attempts to increase the intensity of that light generate heat instead, reducing the dots’ light-producing efficiency. A new study explains why, and the results have broad implications for developing future quantum and photonics technologies where light replaces electrons in computers and fluids in refrigerators, for example.

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A new class of quantum dots deliver a stable stream of single, spectrally tunable infrared photons under ambient conditions and at room temperature, unlike other single photon emitters.

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Today, the U.S. Department of Energy (DOE) announced plans to provide up to $12 million for basic research on advanced 5G and quantum networking. Our modern life has been transformed by wireless and cellular networks, creating a world where humans all over the globe can communicate with each other instantaneously.