Feature Channels: Quantum Mechanics

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Released: 15-Mar-2021 10:05 AM EDT
Rare open-access quantum computer now operational
Sandia National Laboratories

A new Department of Energy open-access quantum computing testbed is ready for the public. Scientists from Indiana University recently became the first team to begin using Sandia National Laboratories' Quantum Scientific Computing Open User Testbed, or QSCOUT.

Released: 11-Mar-2021 4:05 AM EST
Robots learn faster with quantum technology
University of Vienna

Artificial intelligence is part of our modern life by enabling machines to learn useful processes such as speech recognition and digital personal assistants. A crucial question for practical applications is how fast such intelligent machines can learn. An experiment at the University of Vienna has answered this question, showing that quantum technology enables a speed-up in the learning process.

Released: 9-Mar-2021 2:35 PM EST
DOE Announces $30 Million for Quantum Information Science to Tackle Emerging 21st Century Challenges
Department of Energy, Office of Science

The U.S. Department of Energy (DOE) today announced plans to provide $30 million for Quantum Information Science (QIS) research that helps scientists understand how nature works on an extremely small scale—100,000 times smaller than the diameter of a human hair. QIS can help our nation solve some of the most pressing and complex challenges of the 21st century, from climate change to national security.

Released: 9-Mar-2021 11:40 AM EST
UD Joins Mid-Atlantic Quantum Alliance
University of Delaware

The University of Delaware has joined the Mid-Atlantic Quantum Alliance — a hub for quantum technology research, development, innovation and education that seeks to advance U.S. and regional leadership in the coming quantum revolution.

Released: 8-Mar-2021 5:40 PM EST
Bacteria know how to exploit quantum mechanics, UChicago study finds
University of Chicago

Photosynthetic organisms harvest light from the sun to produce the energy they need to survive. A new paper published by University of Chicago researchers reveals their secret: exploiting quantum mechanics.

Released: 5-Mar-2021 3:45 PM EST
Aaron S. Chou: Then and Now / 2011 Early Career Award Winner
Department of Energy, Office of Science

Fermi National Accelerator Laboratory’s Aaron Chou developed the Holometer experiment to measure noise (unwanted data on a transmitted signal) more precisely. He now develops equipment for ultrasensitive dark matter detection and quantum information science devices.

Released: 5-Mar-2021 1:45 PM EST
New quantum theory heats up thermodynamic research
University of Nottingham

Researchers have developed a new quantum version of a 150-year-old thermodynamical thought experiment that could pave the way for the development of quantum heat engines.

Released: 4-Mar-2021 3:15 PM EST
Researchers realize quantum communications milestone using light
Oak Ridge National Laboratory

A team of researchers at the Department of Energy’s Oak Ridge National Laboratory, along with colleagues at Purdue University, has taken an important step toward toward realizing a quantum communications milestone by harnessing the frequency, or color, of light.

Released: 4-Mar-2021 1:50 PM EST
Twistoptics—A New Way to Control Optical Nonlinearity
Columbia University School of Engineering and Applied Science

Columbia Engineering researchers report that they developed a new, efficient way to modulate and enhance an important type of nonlinear optical process: optical second harmonic generation—where two input photons are combined in the material to produce one photon with twice the energy—from hexagonal boron nitride through micromechanical rotation and multilayer stacking. Their work is the first to exploit the dynamically tunable symmetry of 2D materials for nonlinear optical applications.

Released: 2-Mar-2021 11:25 AM EST
Argonne scientists help explain phenomenon in hardware that could revolutionize AI
Argonne National Laboratory

A group of scientists from around the country, including those at Argonne National Laboratory, have discovered a way to make AI-related hardware more efficient and sustainable.

Released: 1-Mar-2021 9:45 AM EST
Story tips: Quantum building blocks, high-pressure diamonds, wildfire ecology, quick cooling tooling and printing on the fly
Oak Ridge National Laboratory

ORNL story tips: Quantum building blocks, high-pressure diamonds, wildfire ecology, quick cooling tooling and printing on the fly

Released: 22-Feb-2021 1:55 PM EST
Researchers create ‘beautiful marriage’ of quantum enemies
Cornell University

Cornell University scientists have identified a new contender when it comes to quantum materials for computing and low-temperature electronics.

Released: 22-Feb-2021 1:55 PM EST
Lack of symmetry in qubits can’t fix errors in quantum computing, but might explain matter/antimatter imbalance
Los Alamos National Laboratory

A team of quantum theorists seeking to cure a basic problem with quantum annealing computers—they have to run at a relatively slow pace to operate properly—found something intriguing instead.

Released: 22-Feb-2021 10:05 AM EST
New Phenomena for the Design of Future Quantum Devices
Department of Energy, Office of Science

Research has shown that the topology of the electronic states in a Weyl semimetal can leave fingerprints on their phonon properties. This happens because of a type of electron-phonon interaction called the Kohn anomaly that impacts how electrons screen phonons through a material. This instability can lead to new electronic properties in materials.

Released: 18-Feb-2021 10:00 AM EST
Quantum computing: when ignorance is wanted
University of Vienna

Quantum technologies for computers open up new concepts of preserving the privacy of input and output data of a computation. Scientists from the University of Vienna, the Singapore University of Technology and Design and the Polytechnic University of Milan have shown that optical quantum systems are not only particularly suitable for some quantum computations, but can also effectively encrypt the associated input and output data.

Released: 17-Feb-2021 2:50 PM EST
Colloidal quantum dot lasers poised to come of age
Los Alamos National Laboratory

A new paper by authors from Los Alamos and Argonne national laboratories sums up the recent progress in colloidal-quantum-dot research and highlights the remaining challenges and opportunities in the rapidly developing field, which is poised to enable a wide array of new laser-based and LED-based technology applications.

Released: 17-Feb-2021 11:40 AM EST
Machine learning blazes path to reliable near-term quantum computers
Los Alamos National Laboratory

Using machine learning to develop algorithms that compensate for the crippling noise endemic on today’s quantum computers offers a way to maximize their power for reliably performing actual tasks, according to a new paper.

Released: 12-Feb-2021 11:50 AM EST
Random twists of place: How quiet is quantum space-time at the Planck scale?
Fermi National Accelerator Laboratory (Fermilab)

Fermilab scientist and University of Chicago professor of astronomy and astrophysics Craig Hogan gives perspective on how the Holometer program aimed at a tiny scale — the Planck length — to help answer one of the universe’s most basic questions: Why does everything appear to happen at definite times and places? He contextualizes the results and offers optimism for future researchers.

Released: 10-Feb-2021 4:05 AM EST
Quantum effects help minimise communication flaws
University of Vienna

Noise limits the performance of modern quantum technologies. However, particles traveling in a superposition of paths can bypass noise in communication. A collaboration between the Universities of Hong-Kong, Grenoble and Vienna, as well as the Austrian Academy of Sciences, under the lead of Philip Walther, reveals novel techniques to reduce noise in quantum communication.

Released: 9-Feb-2021 12:20 PM EST
Quantum computing enables simulations to unravel mysteries of magnetic materials
Oak Ridge National Laboratory

A multi-institutional team became the first to generate accurate results from materials science simulations on a quantum computer that can be verified with neutron scattering experiments and other practical techniques.

Released: 3-Feb-2021 8:55 AM EST
Quantum tunneling in graphene advances the age of terahertz wireless communications
Moscow Institute of Physics and Technology (MIPT)

Scientists from MIPT, Moscow Pedagogical State University and the University of Manchester have created a highly sensitive terahertz detector based on the effect of quantum-mechanical tunneling in graphene. The sensitivity of the device is already superior to commercially available analogs based on semiconductors and superconductors, which opens up prospects for applications of the graphene detector in wireless communications, security systems, radio astronomy, and medical diagnostics. The research results are published in a high-rank journal Nature Communications.

Released: 2-Feb-2021 1:10 PM EST
A new hands-off probe uses light to explore the subtleties of electron behavior in a topological insulator
SLAC National Accelerator Laboratory

Topological insulators are electron are superhighways on their edges and insulators everywhere else. Researchers used a process called high harmonic generation to separately probe electron behavior in both of those domains.

Released: 19-Jan-2021 2:05 PM EST
Light-controlled Higgs modes found in superconductors; potential sensor, computing uses
Iowa State University

Iowa State's Jigang Wang and a team of researchers have discovered a form of the famous Higgs boson -- subject of a groundbreaking search at the Large Hadron Collider -- in an iron-based superconductor. The Higgs mode can be accessed and controlled by light flashing at trillions of pulses per second.

Released: 13-Jan-2021 1:50 PM EST
Pivotal discovery in quantum and classical information processing
Argonne National Laboratory

Researchers have achieved, for the first time, electronically adjustable interactions between microwaves and a phenomenon in certain magnetic materials called spin waves. This could have application in quantum and classical information processing.

12-Jan-2021 1:50 PM EST
Columbia Engineers First to Observe Avalanches in Nanoparticles
Columbia University School of Engineering and Applied Science

Columbia Engineering researchers report the first nanomaterial that demonstrates "photon avalanching,” a process that is unrivaled in its combination of extreme nonlinear optical behavior and efficiency. The realization of photon avalanching in nanoparticle form opens up a host of sought-after applications, from real-time super-resolution optical microscopy, precise temperature and environmental sensing, and infrared light detection, to optical analog-to-digital conversion and quantum sensing.

Released: 12-Jan-2021 1:20 PM EST
Connected Moments for Quantum Computing
Pacific Northwest National Laboratory

Connected moments math shortcut shaves time and cost of quantum calculations while maintaining accuracy

Released: 11-Jan-2021 1:45 PM EST
UB researchers report quantum-limit-approaching chemical sensing chip
University at Buffalo

University at Buffalo researchers are reporting an advancement of a chemical sensing chip that could lead to handheld devices that detect trace chemicals — everything from illicit drugs to pollution — as quickly as a breathalyzer identifies alcohol.

Released: 7-Jan-2021 10:05 AM EST
MITRE Appoints Gerald Gilbert a MITRE Fellow
MITRE

MITRE named Gerald Gilbert, Ph.D., a MITRE Fellow to expand MITRE’s quantum science initiatives. MITRE Fellows are a select group of preeminent scientists in their fields who lead critically important programs. The MITRE Fellows program has a history of deeply impactful work to the nation and world, including the Global Positioning System (GPS) and adaptive signal processing.

Released: 15-Dec-2020 10:25 AM EST
Fermilab and partners achieve sustained, high-fidelity quantum teleportation
Fermi National Accelerator Laboratory (Fermilab)

A joint team of researchers at Fermilab and partner institutions have achieved quantum teleportation, teleporting information over a distance of 44 kilometers. The remarkable achievement supports the premise that scientists and engineers can build a workable and high-fidelity quantum network using practical devices.

9-Dec-2020 10:55 AM EST
Bristol researchers publish significant step toward quantum advantage
University of Bristol

Researchers from the University of Bristol and quantum start-up, Phasecraft, have advanced quantum computing research, bringing practical hybrid quantum-classical computing one step closer.

Released: 7-Dec-2020 3:05 PM EST
The Room-Temperature Superconductor Arrives at Last
Department of Energy, Office of Science

For the first time since superconductivity was discovered in 1911, scientists have created the world’s first superconductor that works at room temperature. To do so, they engineered a new material never before found on earth using a photochemical process to create a starting framework of hydrogen-rich materials. The finding has important implications for quantum computing and energy storage and production.

Released: 7-Dec-2020 12:15 PM EST
Researchers develop unique process for producing light-matter mixture
University of Minnesota College of Science and Engineering

In groundbreaking new research, an international team of researchers led by the University of Minnesota Twin Cities has developed a unique process for producing a quantum state that is part light and part matter.

4-Dec-2020 1:15 PM EST
Harnessing Quantum Properties to Create Single-Molecule Devices
Columbia University School of Engineering and Applied Science

Researchers, led by Columbia Engineering Prof Latha Venkataraman, report today that they have discovered a new chemical design principle for exploiting destructive quantum interference. They used their approach to create a six-nanometer single-molecule switch where the on-state current is more than 10,000 times greater than the off-state current—the largest change in current achieved for a single-molecule circuit to date.

Released: 23-Nov-2020 9:00 AM EST
Quantum X-ray Microscope Underway at Brookhaven Lab
Brookhaven National Laboratory

UPTON, NY—Scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory have begun building a quantum-enhanced x-ray microscope at the National Synchrotron Light Source II (NSLS-II). This groundbreaking microscope, supported by the Biological and Environmental Research progam at DOE’s Office of Science, will enable researchers to image biomolecules like never before.

Released: 20-Nov-2020 10:05 AM EST
Scientist who developed quantum computing code wins ORNL’s top science award
Oak Ridge National Laboratory

ORNL's Paul Kent, Dr. Bart Iddins and two teams were recognized for leadership and accomplishment in science, technology and mission support.

Released: 19-Nov-2020 8:25 AM EST
Scientists age quantum dots in a test tube
Moscow Institute of Physics and Technology (MIPT)

Researchers from MIPT and the RAS Institute of Problems of Chemical Physics have proposed a simple and convenient way to obtain arbitrarily sized quantum dots required for physical experiments via chemical aging

12-Nov-2020 11:35 AM EST
Quantifying Quantumness: A Mathematical Project ‘of Immense Beauty’
American Institute of Physics (AIP)

Large objects behave in accordance with the classical laws of mechanics formulated by Sir Isaac Newton and small ones are governed by quantum mechanics, where an object can behave as both a wave and a particle. The boundary between the classical and quantum realms has always been of great interest. Research reported in AVS Quantum Science, considers the question of what makes something “more quantum” than another -- is there a way to characterize “quantumness”?

Released: 16-Nov-2020 4:55 PM EST
Quantum Tunneling Pushes the Limits of Self-Powered Sensors
Washington University in St. Louis

Shantanu Chakrabartty’s laboratory has been working to create sensors that can run on the least amount of energy. His lab has been so successful at building smaller and more efficient sensors, that they’ve run into a roadblock in the form of a fundamental law of physics.Sometimes, however, when you hit what appears to be an impenetrable roadblock, you just have to turn to quantum physics and tunnel through it.

Released: 16-Nov-2020 1:50 PM EST
A Bridge to the Quantum Revolution
Pacific Northwest National Laboratory

PNNL, Microsoft Quantum partner to link quantum circuits to powerful government supercomputers

Released: 16-Nov-2020 6:05 AM EST
No Losses: Scientists Stuff Graphene with Light
Moscow Institute of Physics and Technology (MIPT)

Physicists from MIPT and Vladimir State University, Russia, have achieved a nearly 90% efficiency converting light energy into surface waves on graphene. They relied on a laser-like energy conversion scheme and collective resonances.

Released: 10-Nov-2020 9:35 AM EST
Making 3-D Nanosuperconductors with DNA
Brookhaven National Laboratory

Scientists developed a platform for making 3-D superconducting nano-architectures with a prescribed organization.

Released: 9-Nov-2020 12:50 PM EST
Fermilab is partner in Quantum Science Center based at Oak Ridge National Laboratory
Fermi National Accelerator Laboratory (Fermilab)

Fermilab plays a key role in the Quantum Science Center, led by Oak Ridge National Laboratory. The center unites that Oak Ridge's powerhouse capabilities in supercomputing and materials science with Fermilab's world-class high-energy physics instrumentation and measurement expertise and facilities. Drawing on their experience building and operating experiments in cosmology and particle physics and in quantum information science, the Fermilab team is engaging in QSC efforts to develop novel, advanced quantum technologies.

6-Nov-2020 8:35 AM EST
Combining electronic and photonic chips enables new record in super-fast quantum light detection
University of Bristol

Researchers from the University of Bristol’s Quantum Engineering Technology Labs (QET Labs) and Université Côte d‘Azur have made a new miniaturized light detector to measure quantum features of light in more detail than ever before. The device, made from two silicon chips working together, was used to measure the unique properties of “squeezed” quantum light at record high speeds.

Released: 5-Nov-2020 11:55 AM EST
Know When to Unfold ’Em: Study Applies Error-Reducing Methods from Particle Physics to Quantum Computing
Lawrence Berkeley National Laboratory

Borrowing a page from high-energy physics and astronomy textbooks, a team of physicists and computer scientists at Berkeley Lab has successfully adapted and applied a common error-reduction technique to the field of quantum computing.

Released: 4-Nov-2020 12:05 PM EST
Material Found in Meteorites Portends New Possibilities for Spintronic Computing
Department of Energy, Office of Science

Hexagonal iron sulfide is a type of multiferroic, a versatile material with both magnetic and ferroelectric coupling. New research on this material provides a route to materials with tunable electrical and magnetic behaviors for potential applications in information storage and spintronics computing.

Released: 29-Oct-2020 12:40 PM EDT
Scientists launch quest to develop quantum sensors for probing quantum materials
SLAC National Accelerator Laboratory

When it comes to fully understanding the hidden secrets of quantum materials, it takes one to know one, scientists say: Only tools that also operate on quantum principles can get us there. A new Department of Energy research center will focus on developing those tools.

Released: 29-Oct-2020 10:25 AM EDT
Breakthrough quantum-dot transistors create a flexible alternative to conventional electronics
Los Alamos National Laboratory

Researchers at Los Alamos National Laboratory and their collaborators from the University of California, Irvine have created fundamental electronic building blocks out of tiny structures known as quantum dots and used them to assemble functional logic circuits.

Released: 26-Oct-2020 3:45 PM EDT
On-surface synthesis of graphene nanoribbons could advance quantum devices
Oak Ridge National Laboratory

An international multi-institution team of scientists has synthesized graphene nanoribbons – ultrathin strips of carbon atoms – on a titanium dioxide surface using an atomically precise method that removes a barrier for custom-designed carbon nanostructures required for quantum information sciences.

Released: 23-Oct-2020 11:15 AM EDT
Timekeeping theory combines quantum clocks and Einstein's relativity
Dartmouth College

A phenomenon of quantum mechanics known as superposition can impact timekeeping in high-precision clocks, according to a theoretical study from Dartmouth College, Saint Anselm College and Santa Clara University.

Released: 15-Oct-2020 7:00 PM EDT
Perimeter Institute launches Clay Riddell Centre for Quantum Matter
Perimeter Institute for Theoretical Physics

A new research hub at Perimeter Institute seeks to accelerate discovery in one of the fastest-growing fields in physics, thanks to a $10 million investment from the Riddell Family Charitable Foundation.



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