Feature Channels: Quantum Mechanics

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Newswise: Physicists embark on six-year hunt for dark matter particle
Released: 26-Oct-2023 6:00 AM EDT
Physicists embark on six-year hunt for dark matter particle
Aalto University

This DarkQuantum consortium was awarded €12.9 million on October 26 by the European Research Council, of which roughly €2 million is set aside for Aalto University researchers.

Newswise: Itinerant Magnetism and Superconductivity in Exotic 2D Metals for Next-Generation Quantum Devices
20-Oct-2023 2:05 PM EDT
Itinerant Magnetism and Superconductivity in Exotic 2D Metals for Next-Generation Quantum Devices
Lawrence Berkeley National Laboratory

The Quantum System Accelerator (QSA) researchers at Berkeley Lab conducted a series of experiments with a new type of layered 2D metal (TMD), finding connections in electronic behavior such as itinerant magnetism and superconductivity, which might potentially help fabricate complex superconducting quantum processors.

Newswise: Scientists Amplify Superconducting Sensor Arrays Signals Near the Quantum Limit
Released: 20-Oct-2023 3:05 PM EDT
Scientists Amplify Superconducting Sensor Arrays Signals Near the Quantum Limit
Department of Energy, Office of Science

Conventional sensors usually lack the sensitivity needed for studies of quantum phenomena and other complex cases. One solution is to use superconducting sensors, but amplifying their signals is challenging. Researchers built on advances from quantum computing to add a special type of amplifiers, superconducting traveling-wave parametric amplifiers, to superconducting sensors. These amplifiers are almost noiseless and operate at relatively high temperatures.

Newswise: Manipulating nonlinear exciton polaritons in an atomically-thin semiconductor with artificial potential landscapes
Released: 19-Oct-2023 7:30 AM EDT
Manipulating nonlinear exciton polaritons in an atomically-thin semiconductor with artificial potential landscapes
Chinese Academy of Sciences

Nonlinear exciton polaritons in TMDs microcavities provide a versatile platform for exploring interacting many-body phenomena. To achieve an appropriate combination of strong nonlinearity with the thermal stability of the polaritons, scientists from Tsinghua University, Wuhan University and Beijing Academy of Quantum Information Sciences jointly developed the artificial mesa cavities to manipulate the nonlinear interaction and the macroscopic coherence of polaritons at ambient conditions. This work will stimulate more developments in realistic polaritonic applications based on the TMDs microcavities.

Newswise: Nondestructive measurement realized in ytterbium qubits, aiding the development of scalable neutral atom quantum computing
Released: 18-Oct-2023 1:05 PM EDT
Nondestructive measurement realized in ytterbium qubits, aiding the development of scalable neutral atom quantum computing
University Of Illinois Grainger College Of Engineering

Atoms of the metal ytterbium-171 may be the closest things in nature to perfect qubits. A recent study shows how to use them for repeated quantum measurements and qubit rotations, which may aid in the development of scalable quantum computing.

Newswise: High-speed electro-optic modulation in topological interface states of a one-dimensional lattice
Released: 18-Oct-2023 9:45 AM EDT
High-speed electro-optic modulation in topological interface states of a one-dimensional lattice
Chinese Academy of Sciences

Electro-optic modulators are key components in data communication and microwave photonics. Large modulation bandwidth, high energy efficiency, and compact device footprint are crucial metrics of a modulator.

Newswise: Spin-orbit Optical Rabi oscillations
Released: 18-Oct-2023 8:20 AM EDT
Spin-orbit Optical Rabi oscillations
Chinese Academy of Sciences

Rabi oscillation is an important wave phenomenon in different disciplines. The wave states in the Rabi oscillations have been revealed as spin waves and orbital waves, while a Rabi wave state merging the spin and orbital angular momentum has remained elusive.

Newswise: Argonne to receive new funding to develop quantum networks
Released: 16-Oct-2023 4:05 PM EDT
Argonne to receive new funding to develop quantum networks
Argonne National Laboratory

Argonne National Laboratory to receive $9 million in funding from the Department of Energy for addressing challenges with scaling up quantum networks to national scales.

Released: 16-Oct-2023 4:05 PM EDT
Pushing the quantum frontier for finance: JPMorgan Chase’s Marco Pistoia
Argonne National Laboratory

An institutional partner of the Q-NEXT quantum research center, JPMorgan Chase is advancing quantum technologies for the financial sector while collaborating with other organizations to push the quantum frontier for all.

Newswise: Fermilab receives DOE funding to further develop nationwide quantum network
Released: 16-Oct-2023 2:05 PM EDT
Fermilab receives DOE funding to further develop nationwide quantum network
Fermi National Accelerator Laboratory (Fermilab)

DOE awarded Fermilab $9 million to further develop technology for national-scale quantum networks to improve the transmission of information as part of the Advanced Quantum Network for Scientific Discovery project.

Released: 16-Oct-2023 1:05 PM EDT
Argonne’s Aurora supercomputer set to supercharge materials discovery
Argonne National Laboratory

Researchers are preparing to use Argonne’s Aurora exascale supercomputer and artificial intelligence to accelerate the search for promising new materials for batteries, catalysts and other applications.

Newswise: On-chip Infrared Circular Polarization Detector with Ultrahigh Discrimination
Released: 16-Oct-2023 7:45 AM EDT
On-chip Infrared Circular Polarization Detector with Ultrahigh Discrimination
Chinese Academy of Sciences

Filterless light-ellipticity-sensitive optoelectronic response generally has low discrimination, thus severely hindering the development of monolithic polarization detectors.

Newswise: A new way to erase quantum computer errors
Released: 11-Oct-2023 5:05 PM EDT
A new way to erase quantum computer errors
California Institute of Technology

Quantum computers of the future hold promise in solving all sorts of problems. For example, they could lead to more sustainable materials, new medicines, and even crack the hardest problems in fundamental physics.

Newswise: Quantum Dots: FAMU-FSU College of Engineering Professor Collaborated on Early Work That Led to Nobel Prize in Chemistry
Released: 11-Oct-2023 2:05 PM EDT
Quantum Dots: FAMU-FSU College of Engineering Professor Collaborated on Early Work That Led to Nobel Prize in Chemistry
Florida State University

By: Tisha Keller | Published: October 11, 2023 | 2:41 pm | SHARE: The 2023 Nobel Prize in Chemistry was recently awarded to three renowned scientists for the development of quantum dots — nanoparticles so small that their properties are determined by quantum phenomena. Quantum dots are used to illuminate televisions and computer screens, LED lamps, and help guide surgeons in removal of tumor tissue.

Newswise: Ionic crystal generates molecular ions upon positron irradiation, finds new study
Released: 11-Oct-2023 8:05 AM EDT
Ionic crystal generates molecular ions upon positron irradiation, finds new study
Tokyo University of Science

Positron, the antiparticle of electron, has the same mass and charge as that of an electron but with the sign flipped for the charge.

Newswise: A new qubit platform is created atom by atom
Released: 9-Oct-2023 4:05 AM EDT
A new qubit platform is created atom by atom
Institute for Basic Science

Researchers at the IBS Center for Quantum Nanoscience (QNS) at Ewha Womans University have accomplished a groundbreaking step forward in quantum information science.

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.



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