Deborah Frincke, associate laboratories director of national security programs at Sandia National Laboratories, has been appointed to the National Quantum Initiative Advisory Committee.
A new form of heterostructure of layered two-dimensional (2D) materials may enable quantum computing to overcome key barriers to its widespread application, according to an international team of researchers.
“Twisted” X-ray beams carrying orbital angular momentum hold great promise for imaging and probing materials at the nanoscale. Scientists have now developed and demonstrated a new technique that uses a special patterned array of engineered nanoscale magnets called an artificial spin ice to impart OAM to X-ray beams. The beams can be switched on and off using changes in temperature and magnetic fields.
Moiré patterns can occur when scientists stack two-dimensional crystals with mismatched atomic spacings. Moiré superlattices display exotic physical properties that are absent in the layers that make up the patterns. Researchers have discovered a new property in the moiré superlattices formed in tungsten diselenide/tungsten disulfide crystals, in which the electrons “freeze” and form an ordered array.
The resulting distortions are 'huge' compared to those in other materials, and represent the first demonstration of the Jahn-Teller effect in a layered material with a flat, planar lattice, like a high-rise building with evenly spaced floors.
Following the screening of the movie, leading experts in quantum science discussed the quantum realm in Marvel’s universe and in ours. Guests were also treated to a hands-on demo of the Quantum Casino, a fun, game-based introduction to quantum physics.
Solar panels with multiple stacked cells are currently breaking records. Remarkably, a team of researchers from Eindhoven University of Technology and TNO at Holst Centre have now managed to make photodiodes - based on a similar technology - with a photoelectron yield of more than 200 percent.
A research team supported by the Q-NEXT quantum research center demonstrates a new way to use quantum sensors to tease out relationships between microscopic magnetic fields.
Long before Dr. Jukka Vayrynen was an assistant professor at the Purdue Department of Physics and Astronomy, he was a post-doc investigating a theoretical model with emergent particles in a condensed matter setting.
Researchers have produced new evidence of how graphene, when twisted to a precise angle, can become a superconductor, moving electricity with no loss of energy. In a study published today (Feb. 15, 2023) in the journal Nature, the team led by physicists at The Ohio State University reported on the key role that quantum geometry plays in allowing this twisted graphene to become a superconductor.
Story tips: Neutrons uncover hydrogen’s hidden role in twisting iron; Entangled quantum particles are viable in space; Reused car batteries rev up electric grid; Pulling the shades for energy savings
New research in quantum computing at Sandia National Laboratories is moving science closer to being able to overcome supply-chain challenges and restore global security during future periods of unrest.
Whether the light in our living spaces is on or off can be regulated in everyday life simply by reaching for the light switch. However, when the space for the light is shrunk to a few nanometers, quantum mechanical effects dominate, and it is unclear whether there is light in it or not.
Excitons are drawing attention as possible quantum bits (qubits) in tomorrow’s quantum computers and are central to optoelectronics and energy-harvesting processes. However, these charge-neutral quasiparticles, which exist in semiconductors and other materials, are notoriously difficult to confine and manipulate. Now, for the first time, Berkeley Lab researchers have created and directly observed highly localized excitons confined in simple stacks of atomically thin materials. The work confirms theoretical predictions and opens new avenues for controlling excitons with custom-built materials.
In the world around us processes appear to follow a certain time-direction: dandelions eventually turn into blowballs. However, the quantum realm does not play by the same rules. Physicists from the University of Vienna and IQOQI Vienna have now shown that for certain quantum systems the time-direction of processes can be reversed. This demonstration of a so-called rewinding protocol has been published in the Journal "Optica".
If scaled up successfully, the team's new system could help answer questions about certain kinds of superconductors and other unusual states of matter.
Today, the U.S. Department of Energy (DOE) announced $9.1 million in funding for 13 projects in Quantum Information Science (QIS) with relevance to nuclear physics. Nuclear physics research seeks to discover, explore, and understand all forms of nuclear matter that can exist in the universe – from the subatomic structure of nucleons, to exploding stars, to the emergence of the quark-gluon plasma seconds after the Big Bang.
Today the U.S. Department of Energy (DOE) and the National Science Foundation (NSF) signed a Memorandum of Understanding (MOU) that will continue a longstanding collaboration on scientific and engineering research and enable increased partnership to address the most important challenges of the 21st century.
At the scale of individual atoms, physics gets weird. Researchers are working to reveal, harness, and control these strange quantum effects using quantum analog simulators — laboratory experiments that involve super-cooling tens to hundreds of atoms and probing them with finely tuned lasers and magnets.
Optical fibres are the backbone of our modern information networks. From long-range communication over the internet to high-speed information transfer within data centres and stock exchanges, optical fibre remains critical in our globalised world.
Today, the U.S. Department of Energy (DOE) announced $56 million to provide research opportunities to historically underrepresented groups and institutions in STEM. The funding, through the DOE Office of Science’s Reaching a New Energy Sciences Workforce (RENEW) initiative, will support internships, mentorship, and training programs at Historically Black Colleges and Universities (HBCUs), other Minority Serving Institutions (MSIs), and other research institutions. These investments will diversify American leadership in the physical, biological, and computational sciences to ensure America’s best and brightest students have pathways to STEM fields.
Dr. Michael Stern and co-workers from the Department of Physics and Quantum Entanglement Science and Technology (QUEST) Center at Bar-Ilan University in Israel are attempting to build superconducting processors based on a type of circuit called superconducting flux qubits. A flux qubit is a micron-sized superconducting loop where electrical current can flow clockwise or counter-clockwise, or in a quantum superposition of both directions. Contrary to transmon qubits, these flux qubits are highly non-linear objects and can thus be manipulated on very short time scales with high fidelity. The main drawback of flux qubits, however, is that they are particularly difficult to control and to fabricate. This leads to sizeable irreproducibility and has limited their use in the industry until now to quantum annealing optimization processes such as the ones realized by D-Wave.
Using a novel fabrication technique and state-of the-art equipment, a group led by Dr. Stern, in collaboration with Pr
The University of Chicago today unveiled Polsky Deep Tech Ventures, a new initiative offering a suite of sector-specific accelerators, entrepreneurial training, and funding dedicated to supporting startups that bring world-changing science and technology to market.
Meet Adrien Florio, a postdoctoral research associate and fellow in Brookhaven Lab’s Nuclear Theory Group that is contributing his unique perspective and experience to the Co-design Center for Quantum Advantage's theory and applications subthrust.
Scientists are increasingly seeking to discover more about quantum entanglement, which occurs when two or more systems are created or interact in such a manner that the quantum states of some cannot be described independently of the quantum states of the others.
This year’s Nobel Prize in Physics celebrated the fundamental interest of quantum entanglement, and also envisioned the potential applications in “the second quantum revolution” — a new age when we are able to manipulate the weirdness of quantum mechanics, including quantum superposition and entanglement.
Argonne researchers put their stamp on 2022 with accomplishments as varied as quantum science, wearable medical sensors, and climate change resilience and recovery.
Researchers at the Georgia Institute of Technology have developed a new graphene-based nanoelectronics platform that could be the key to finding a successor to silicon. The team may have also discovered a new quasiparticle. Their discovery could lead to manufacturing smaller, faster, more efficient, and more sustainable computer chips, and has potential implications for quantum and high-performance computing.
One of the most highly-attended workshops at the 2022 IEEE Quantum Week was organized by researchers from the Advanced Quantum Testbed (AQT) at Lawrence Berkeley National Lab (Berkeley Lab). Motivated by deep scientific inquiry and technological needs, the one-day hybrid workshop was titled “Classical Control Systems for Quantum Computing.”
The Quantum Systems Accelerator, a National Quantum Information Science Research Center led by Berkeley Lab, is stepping up efforts for quantum education and outreach, especially at the high school level, which traditionally has not been regarded as an entry point to quantum science. The outreach should help fill the increasing number of job vacancies in this fast-growing and developing field.
New research from the Georgia Institute of Technology uses machine learning models to better understand water’s phase changes, opening more avenues for a better theoretical understanding of various substances. With this technique, the researchers found strong computational evidence in support of water’s liquid-liquid transition that can be applied to real-world systems that use water to operate.
The Q-NEXT quantum research center has released a quantum technology roadmap that outlines the research and scientific discoveries needed for distributing quantum information on a 10- to 15-year timescale.
To cool quantum computing components, researchers use machines called dilution refrigerators. Researchers and engineers from the SQMS Center are building Colossus, the largest, most powerful refrigerator at millikelvin temperatures ever made. The new machine will enable new physics and quantum computing experiments.
Leading academic and industry researchers in the rapidly developing fields of quantum computation, quantum physics, and related areas gathered at the HK Tech Forum on Quantum Physics and Complex Systems hosted by the Hong Kong Institute for Advanced Study at City University of Hong Kong (CityU) from 7 to 9 December.
What are quantum repeaters, and how do they work? This explainer lays what these devices do, their role in entanglement swapping, and how the Q-NEXT quantum center is advancing the technology.
Scientists have developed a qubit platform formed by freezing neon gas into a solid, spraying electrons from a light bulb’s filament onto it, and trapping a single electron there. This system shows great promise as an ideal building block for quantum computers.
Adaptable and versatile, molecular qubits hold promise for numerous quantum applications. By altering the qubit's host environment, a team supported by the Q-NEXT quantum center has extended the length of time these qubits can maintain information.
During photosynthesis, a chemical reaction jumpstarted by sunlight breaks down chemicals into the food plants need to repair themselves and to grow. But as researchers attempt to better understand photosynthesis, they have hit a roadblock when it comes to being able to see the fundamental structures and processes in a plant.
Heavy ion collisions using gold nuclei found a phase of nuclear matter with freely moving quarks and gluons, the Quark Gluon Plasma (QGP). Scientists are aiming to establish if a critical point exists in the phase diagram of nuclear matter, where the QGP would coexist with a gas of protons, neutrons, and other particles. Research at the Relativistic Heavy Ion Collider indicates that if this critical point exists, it is between energies of 3 and 20 giga-electron volts.
Jigang Wang's extreme-scale nanoscope is beginning to collect data about how pulses of light at trillions of cycles per second can control supercurrents in materials. The instrument could one day help optimize superconducting quantum bits, which are at the heart of quantum computing.
Researchers recently produced single-photon sources with operating wavelengths compatible with existing fiber communication networks using two-dimensional molybdenum ditelluride semiconductor layers on nano-size pillars.
Things are looking brighter than ever at the Berkeley Lab Laser Accelerator Center. A recently completed upgrade will expand the center’s capabilities into new areas, including studies of particle acceleration, extremely hot plasmas, cancer treatment techniques, and materials for quantum science.