Feature Channels: Quantum Mechanics

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Newswise: Optimizing continuous-variable functions with quantum annealing
Released: 4-Oct-2023 8:05 AM EDT
Optimizing continuous-variable functions with quantum annealing
Tokyo Institute of Technology

Quantum annealing (QA) is a cutting-edge algorithm that leverages the unique properties of quantum computing to tackle complex combinatorial optimization problems (a class of mathematical problems dealing with discrete-variable functions).

Released: 4-Oct-2023 7:05 AM EDT
American Chemical Society’s president comments on award of 2023 Nobel Prize in Chemistry
American Chemical Society (ACS)

On behalf of the American Chemical Society (ACS), President Judith C. Giordan, Ph.D., congratulates today’s winners of the Nobel Prize in Chemistry: Moungi G. Bawendi, Ph.D., of the Massachusetts Institute of Technology; Louis E. Brus, Ph.D., of Columbia University; and Alexei I. Ekimov, Ph.D., of Nanocrystals Technology Inc.

Newswise: Calculation Shows Why Heavy Quarks Get Caught Up in the Flow
Released: 3-Oct-2023 3:05 PM EDT
Calculation Shows Why Heavy Quarks Get Caught Up in the Flow
Department of Energy, Office of Science

Theorists have successfully calculated the “heavy quark diffusion coefficient,” which describes how quickly a melted soup of quarks and gluons transfers its momentum to heavy quarks. The results show this transfer is very fast—at the limit of what quantum mechanics will allow.

Newswise: Novel Framework Improves the Efficiency of Complex Supercomputer Physics Calculations
Released: 2-Oct-2023 10:05 AM EDT
Novel Framework Improves the Efficiency of Complex Supercomputer Physics Calculations
Department of Energy, Office of Science

Some types of quantum chromodynamics (QCD) calculations are so complex they strain even supercomputers. To speed these calculations, researchers developed MemHC, an optimized memory framework.

Newswise: Does antimatter fall up or down? Physicists observe the first gravitational free-fall of antimatter
Released: 27-Sep-2023 5:05 PM EDT
Does antimatter fall up or down? Physicists observe the first gravitational free-fall of antimatter
University of Calgary

The physics behind antimatter is one of the world’s greatest mysteries. Looking as far back as The Big Bang, physics has predicted that when we create matter, we also create antimatter.

Newswise: Perimeter and Haiqu partnership forges new model for quantum computing research
Released: 27-Sep-2023 9:00 AM EDT
Perimeter and Haiqu partnership forges new model for quantum computing research
Perimeter Institute for Theoretical Physics

The Perimeter Institute and quantum software startup Haiqu have established a new partnership to more closely connect fundamental research and technological innovation.

Newswise: Advancing atomic-scale technology
Released: 26-Sep-2023 3:05 PM EDT
Advancing atomic-scale technology
Case Western Reserve University

A Case Western Reserve University-led team is working on technology that could dramatically improve electrical transformers and power converters in electric vehicles.

Released: 26-Sep-2023 6:05 AM EDT
New qubit circuit enables quantum operations with higher accuracy
Massachusetts Institute of Technology (MIT)

In the future, quantum computers may be able to solve problems that are far too complex for today’s most powerful supercomputers. To realize this promise, quantum versions of error correction codes must be able to account for computational errors faster than they occur.

Released: 25-Sep-2023 1:05 PM EDT
What is quantum squeezing?
Argonne National Laboratory

Scientists exploit a property of quantum physics to make ultraprecise sensors and measurements.

Released: 25-Sep-2023 11:05 AM EDT
Nina Andrejevic creates better tools to quickly characterize materials
Argonne National Laboratory

Understanding big datasets requires better analytical models, says the Maria Goeppert Mayer Fellow.

Newswise: How Radio Astronomy Sees Magnetic Fields
Released: 22-Sep-2023 11:05 AM EDT
How Radio Astronomy Sees Magnetic Fields
National Radio Astronomy Observatory

Many objects in the Universe have magnetic fields. Planets such as Earth and Jupiter, the Sun and other stars, even galaxies billions of light years away.

Newswise: Shh! Quiet Cables Set to Help Reveal Rare Physics Events
Released: 21-Sep-2023 11:05 AM EDT
Shh! Quiet Cables Set to Help Reveal Rare Physics Events
Pacific Northwest National Laboratory

Newly developed ultra-low radiation cables reduce background noise for neutrino and dark matter detectors.

Newswise: Researchers advance topological superconductors for quantum computing
Released: 20-Sep-2023 4:10 PM EDT
Researchers advance topological superconductors for quantum computing
Oak Ridge National Laboratory

Quantum computers process information using quantum bits, or qubits, based on fragile, short-lived quantum mechanical states. To make qubits robust for applications, researchers from Oak Ridge National Laboratory sought to create a new material system.

Newswise: Observing the Coherent Motion of Electrons with an Attosecond Stopwatch
Released: 15-Sep-2023 4:05 PM EDT
Observing the Coherent Motion of Electrons with an Attosecond Stopwatch
Department of Energy, Office of Science

Electrons can display interference effects like waves in the ocean, but this happens on extremely fast time scales. In this study, scientists observed the quantum mechanical motion of electrons in an excited molecule using an “attoclock,” which measures electron motion with a precision of hundreds of attoseconds. The experiment advances the study of electron dynamics and will improve understanding of molecular physics and quantum chemistry.

Newswise: Stony Brook Professor Alexander Zamolodchikov, Co-Winner for 2024 Breakthrough Prize for Fundamental Physics
Released: 14-Sep-2023 4:05 PM EDT
Stony Brook Professor Alexander Zamolodchikov, Co-Winner for 2024 Breakthrough Prize for Fundamental Physics
Stony Brook University

This morning, the Breakthrough Foundation announced the winners of the 2024 Breakthrough Prizes and Stony Brook University Distinguished Professor and C.N. Yang/Wei Deng Endowed Chair Alexander Zamolodchikov was named co-recipient of the Prize in Fundamental Physics.

Newswise: Plastic Deformation Engineering Dramatically Enhances Quantum Phenomena
Released: 11-Sep-2023 3:05 PM EDT
Plastic Deformation Engineering Dramatically Enhances Quantum Phenomena
Department of Energy, Office of Science

Researchers have discovered that applying plastic deformation to the quantum material strontium titanate causes defects (known as dislocations) to organize themselves into repeating structures. These changes lead to improvements of strontium titanate’s superconducting and ferroelectric properties.

Newswise: Physicists Create Powerful Magnets to De-Freeze Quantum Computing
Released: 11-Sep-2023 12:05 PM EDT
Physicists Create Powerful Magnets to De-Freeze Quantum Computing
University of Texas at El Paso

New material works at room temperature, 100 times more magnetic than iron

Newswise: New Material Enables an Ultrafast Electron Diffraction Probe for Quantum Materials
Released: 8-Sep-2023 3:05 PM EDT
New Material Enables an Ultrafast Electron Diffraction Probe for Quantum Materials
Department of Energy, Office of Science

Quantum materials’ properties arise from the interaction of their electrons and atomic nuclei. Researchers can observe these interactions as they happen using ultrafast X-ray or electron beam pulses.

Released: 7-Sep-2023 3:05 PM EDT
Machine learning contributes to better quantum error correction
RIKEN

Researchers from the RIKEN Center for Quantum Computing have used machine learning to perform error correction for quantum computers—a crucial step for making these devices practical—using an autonomous correction system that despite being approximate, can efficiently determine how best to make the necessary corrections.

Newswise: Grasping entropy: Teachers and students investigate thermodynamics through a hands-on model
Released: 6-Sep-2023 3:05 PM EDT
Grasping entropy: Teachers and students investigate thermodynamics through a hands-on model
American Institute of Physics (AIP)

Though a cornerstone of thermodynamics, entropy remains one of the most vexing concepts to teach budding physicists in the classroom. In The Physics Teacher, co-published by AIP Publishing and the American Association of Physics Teachers, T. Ryan Rogers designed a hand-held model to demonstrate the concept of entropy for students.

   
Released: 6-Sep-2023 10:05 AM EDT
Promising quantum state found during error correction research
Cornell University

While studying random algorithms to learn their generic features and to develop new strategies to correct quantum processor errors, Cornell researchers discovered that certain classes of algorithms lead to hidden order called “spin-glass” for its analogy to window glass, which at the micro level has the disorder of liquid and the rigidity of a solid.

Released: 5-Sep-2023 2:10 PM EDT
Deriving the fundamental limit of heat current in quantum mechanical many-particle systems
University of Tsukuba

Over the past few years, research has been conducted on quantum technologies that exploit the quantum mechanical properties of microscopic entities.

Newswise: Researchers Test Quantum Theory with Precision-Engineered Thin Films
Released: 30-Aug-2023 4:05 PM EDT
Researchers Test Quantum Theory with Precision-Engineered Thin Films
Department of Energy, Office of Science

Comparing experimental results and theoretical calculations can be difficult for quantum materials. One solution is to use sample materials that isolate and emphasize an atomic line with one dimensional properties. In this study, scientists grew thin films of layered copper-oxygen materials to experimentally test theories of electron interaction in quantum materials. The study indicates that standard theory is not sufficient and requires a new term to fit the experimental data.

Released: 29-Aug-2023 1:40 PM EDT
Department of Energy Announces $24 Million for Research on Quantum Networks
Department of Energy, Office of Science

Today, the U.S. Department of Energy (DOE) announced $24 million in funding for three collaborative projects in quantum network research.

Newswise: Quantum discovery offers glimpse into other-worldly realm
Released: 29-Aug-2023 7:05 AM EDT
Quantum discovery offers glimpse into other-worldly realm
Aalto University

Experiments promote a curious flipside of decaying monopoles: a reality where particle physics is quite literally turned on its head

Newswise: Scientists use quantum device to slow down simulated chemical reaction 100 billion times
25-Aug-2023 11:05 AM EDT
Scientists use quantum device to slow down simulated chemical reaction 100 billion times
University of Sydney

Scientists at the University of Sydney have, for the first time, used a quantum computer to engineer and directly observe a process critical in chemical reactions by slowing it down by a factor of 100 billion times.

Released: 23-Aug-2023 6:05 PM EDT
Quantum powers researchers to see the unseen
Virginia Tech

Virginia Tech researchers are leveraging a quantum-based discovery to help people see better in the dark.

Released: 23-Aug-2023 1:20 PM EDT
Hot chemistry quickly transforms aromatic molecules into harmful aerosols
Tampere University

Many aromatic molecules are carcinogenic and have negative impacts on health.

Newswise: UIC leads national consortium educating next generation of quantum engineers
Released: 23-Aug-2023 11:05 AM EDT
UIC leads national consortium educating next generation of quantum engineers
University of Illinois Chicago

Harnessing the potential of quantum physics for advances in computing, communication and other technologies promises to be the next great engineering challenge.

Newswise: Research group detects a quantum entanglement wave for the first time using real-space measurements
Released: 23-Aug-2023 4:05 AM EDT
Research group detects a quantum entanglement wave for the first time using real-space measurements
Aalto University

A team from Aalto University and the University of Jyväskylä have created an artificial quantum magnet featuring a quasiparticle made of entangled electrons, the triplon.

Newswise: Advances in Quantum Emitters Mark Progress Toward a Quantum Internet
Released: 22-Aug-2023 11:15 AM EDT
Advances in Quantum Emitters Mark Progress Toward a Quantum Internet
Lawrence Berkeley National Laboratory

A team of Berkeley Lab researchers has recently demonstrated a more effective technique for creating quantum emitters using pulsed ion beams, which could lead to their use in a quantum internet and for sensing radiation.

Released: 17-Aug-2023 4:25 PM EDT
We finally know why quantum ‘strange metals’ are so strange
Simons Foundation

For nearly 40 years, materials called ‘strange metals’ have flummoxed quantum physicists, defying explanation by operating outside the normal rules of electricity.

Newswise: The Advanced Quantum Testbed Poised for Growth: Outcomes from Two-Day Summit
16-Aug-2023 5:05 PM EDT
The Advanced Quantum Testbed Poised for Growth: Outcomes from Two-Day Summit
Lawrence Berkeley National Laboratory

The Advanced Quantum Testbed (AQT) at Berkeley Lab celebrated the first five years of operations and its renewal with a two-day hybrid summit in May 2023, bringing together staff, alums, testbed users, and colleagues.

Newswise: Bigger and better quantum computers possible with new ion trap, dubbed the Enchilada
Released: 17-Aug-2023 7:00 AM EDT
Bigger and better quantum computers possible with new ion trap, dubbed the Enchilada
Sandia National Laboratories

Sandia National Laboratories has produced its first lot of a new world-class ion trap, a central component for certain quantum computers.

Newswise: Quantifying Qudits: New Measurements Provide a Glimpse of the Quantum Future
Released: 16-Aug-2023 3:35 PM EDT
Quantifying Qudits: New Measurements Provide a Glimpse of the Quantum Future
Department of Energy, Office of Science

The qubits that make up quantum computers have a lesser-known cousin called qudits. Qudits can carry more information and are more resistant to the noise that can cause qubits to lose information. However, qudits have historically been difficult for scientists to measure and modify.

Newswise: Long-Lived Quantum State Points the Way to Solving a Mystery in Radioactive Nuclei
Released: 16-Aug-2023 10:05 AM EDT
Long-Lived Quantum State Points the Way to Solving a Mystery in Radioactive Nuclei
Oak Ridge National Laboratory

Oak Ridge National Laboratory's Timothy Gray led a study that may have revealed an unexpected change in the shape of an atomic nucleus. The finding could affect our understanding of what holds nuclei together, how protons and neutrons interact and how elements form.

Newswise: Novel hardware approach offers new quantum-computing paradigm
Released: 15-Aug-2023 11:40 AM EDT
Novel hardware approach offers new quantum-computing paradigm
Los Alamos National Laboratory

A potentially game-changing theoretical approach to quantum computing hardware avoids much of the problematic complexity found in current quantum computers. The strategy implements an algorithm in natural quantum interactions to process a variety of real-world problems faster than classical computers or conventional gate-based quantum computers can.

Newswise: Carbon-based quantum technology
Released: 15-Aug-2023 8:45 AM EDT
Carbon-based quantum technology
Empa, Swiss Federal Laboratories for Materials Science and Technology

Graphene nanoribbons have outstanding properties that can be precisely controlled. Researchers from Empa and ETH Zurich, in collaboration with partners from Peking University, the University of Warwick and the Max Planck Institute for Polymer Research, have succeeded in attaching electrodes to individual atomically precise nanoribbons, paving the way for precise characterization of the fascinating ribbons and their possible use in quantum technology.

Newswise: Arrays of quantum rods could enhance TVs or virtual reality devices
Released: 14-Aug-2023 1:35 PM EDT
Arrays of quantum rods could enhance TVs or virtual reality devices
Massachusetts Institute of Technology (MIT)

Using scaffolds made of folded DNA, MIT engineers have come up with a new way to precisely assemble arrays of quantum rods.

Newswise: A quantum leap in mechanical oscillator technology
Released: 11-Aug-2023 4:00 PM EDT
A quantum leap in mechanical oscillator technology
École Polytechnique Fédérale de Lausanne (EPFL)

Over the past decade, scientists have made tremendous progress in generating quantum phenomena in mechanical systems. What seemed impossible only fifteen years ago has now become a reality, as researchers successfully create quantum states in macroscopic mechanical objects.

Released: 10-Aug-2023 2:30 PM EDT
Let there be matter: Simulating the creation of matter from photon–photon collisions
Osaka University

One of the most striking predictions of quantum physics is that matter can be generated solely from light (i.e., photons), and in fact, the astronomical bodies known as pulsars achieve this feat.

Released: 10-Aug-2023 9:15 AM EDT
National QIS Research Centers to Host Virtual Career Fair
Brookhaven National Laboratory

Registration is now open for the third Quantum Information Science Career Fair hosted by the U.S. Department of Energy (DOE) Office of Science’s National Quantum Information Science (QIS) Research Centers. The virtual event takes place on Wednesday, Sept. 13. The event aims to make undergraduates, graduate students, postdocs and early-career professionals aware of the wide range of QIS careers they can pursue—including technical and scientific roles as well as positions that facilitate research and bring awareness to the field, such as communications and program management.

Newswise: Distinguished Researcher Chosen as Editor-in-Chief to Lead APL Quantum, a New Open-Access Journal from AIP Publishing
Released: 10-Aug-2023 8:00 AM EDT
Distinguished Researcher Chosen as Editor-in-Chief to Lead APL Quantum, a New Open-Access Journal from AIP Publishing
American Institute of Physics (AIP)

AIP Publishing is thrilled to announce the appointment of Ortwin Hess as the founding editor-in-chief of APL Quantum, its newest open-access journal, which seeks to cultivate groundbreaking research in both fundamental and applied quantum science. Hess brings a lifetime of scientific experience and insight in nearly all aspects of quantum science and as editor-in-chief, he will lead the journal as it begins accepting submissions later in 2023 and prepares to publish in 2024.

Newswise: Three Argonne scientists receive 2023 DOE Early Career Awards
Released: 9-Aug-2023 12:55 PM EDT
Three Argonne scientists receive 2023 DOE Early Career Awards
Argonne National Laboratory

Argonne researchers received three DOE Early Career Awards, which will help early-career researchers establish themselves as experts in their fields.

Newswise: Demon hunting: Physicists confirm 67-year-old prediction of massless, neutral composite particle
Released: 9-Aug-2023 11:45 AM EDT
Demon hunting: Physicists confirm 67-year-old prediction of massless, neutral composite particle
University Of Illinois Grainger College Of Engineering

In 1956, theoretical physicist David Pines predicted that electrons in a solid could form a composite particle called a demon. It's eluded detection since its prediction....until now.

Released: 8-Aug-2023 5:35 PM EDT
Physicists open new path to an exotic form of superconductivity
Emory University

Physicists have identified a mechanism for the formation of oscillating superconductivity known as pair-density waves.

Newswise: New metalens lights the way for advanced control of quantum emission
Released: 8-Aug-2023 8:30 AM EDT
New metalens lights the way for advanced control of quantum emission
Chinese Academy of Sciences

Structuring light emission, particularly from non-classical sources, is crucial for realizing practical high-dimensional quantum information processing. However, traditional methods rely on bulky optical elements with limited functionalities. Scientists have developed an elegant solution for controlling and manipulating dim light sources – down to the single photon level. The nanopatterned structure, a multifunctional metalens, could unleash the full potential of solid-state quantum light sources for advanced quantum photonic applications.

Newswise: Quantum Material Exhibits “Non-Local” Behavior That Mimics Brain Function
Released: 7-Aug-2023 7:05 PM EDT
Quantum Material Exhibits “Non-Local” Behavior That Mimics Brain Function
University of California San Diego

New research from Q-MEEN-C shows that electrical stimuli passed between neighboring electrodes can also affect non-neighboring electrodes. Known as non-locality, this discovery is a crucial milestone toward creating brain-like computers with minimal energy requirements.



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