https://phys.org/physics-news/quantum-physics en-us The latest news on quantum physics, wave particle duality, quantum theory, quantum mechanics, quantum entanglement, quantum teleportation, and quantum computing. Electrons typically travel at high speeds, zipping through matter unbound. In the 1930s, physicist Eugene Wigner predicted that electrons could be coaxed into stillness at low densities and cold temperatures, forming an electron ice that would later be called the Wigner crystal. https://phys.org/news/2024-11-scientists-capture-images-quantum-phase.html Condensed Matter Quantum Physics Thu, 07 Nov 2024 12:05:03 EST news650203501 The Korea Research Institute of Standards and Science (KRISS) has, for the first time in the world, generated and controlled skyrmions at room temperature in two-dimensional (2D) materials. This achievement reduces power consumption compared to traditional three-dimensional (3D) systems while maximizing quantum effects, making it a core technology for the development of room-temperature quantum computers and AI semiconductors. https://phys.org/news/2024-11-skyrmions-room-temperature-2d-topological.html Condensed Matter Quantum Physics Wed, 06 Nov 2024 12:04:03 EST news650117042 Supersolids are a new form of quantum matter that has only recently been demonstrated. The state of matter can be produced artificially in ultracold, dipolar quantum gases. A team led by Innsbruck physicist Francesca Ferlaino has now demonstrated a missing hallmark of superfluidity, namely the existence of quantized vortices as a system's response to rotation. They have observed tiny quantum vortices in the supersolid, which also behave differently than previously assumed. https://phys.org/news/2024-11-quantum-vortices-superfluidity-supersolid.html Condensed Matter Quantum Physics Wed, 06 Nov 2024 11:00:01 EST news650107556 Science can be difficult to explain to the public. In fact, any subfield of science can be difficult to explain to another scientist who studies in a different area. Explaining a theoretical science concept to high school students requires a new way of thinking altogether. https://phys.org/news/2024-11-human-topological-insulator-choreographed-quantum.html General Physics Quantum Physics Tue, 05 Nov 2024 08:56:37 EST news650019389 Radio frequency (RF) and microwave power measurements are widely used to support applications across space, defense, and communication. These precise measurements enable engineers to accurately characterize waveforms, components, circuits, and systems. https://phys.org/news/2024-11-successful-commercial-cryogenic-radio-frequency.html Quantum Physics Mon, 04 Nov 2024 14:29:02 EST news649952941 Imperial researchers have proposed a new way to directly probe quantum entanglement, the effect that led to the puzzling concept of "spooky action at a distance," where previously grouped particles' quantum states cannot be described independently of each other. The research has been accepted for publication in Physical Review X. https://phys.org/news/2024-11-physicists-bell-probing-quantum-entanglement.html Quantum Physics Mon, 04 Nov 2024 12:01:57 EST news649944107 A U.S. Naval Research Laboratory (NRL) multi-disciplinary team developed a new paradigm for the control of quantum emitters, providing a new method for modulating and encoding quantum photonic information on a single photon light stream. https://phys.org/news/2024-10-paradigm-quantum-emitters-modulating-encoding.html Optics & Photonics Quantum Physics Thu, 31 Oct 2024 14:15:38 EDT news649602935 A discovery by Rice University physicists and collaborators is unlocking a new understanding of magnetism and electronic interactions in cutting-edge materials, potentially revolutionizing technology fields such as quantum computing and high-temperature superconductors. https://phys.org/news/2024-10-discovery-theories-magnetism-kagome-metals.html Condensed Matter Quantum Physics Wed, 30 Oct 2024 17:08:06 EDT news649526881 Quantum computers hold the promise to emulate complex materials, helping researchers better understand the physical properties that arise from interacting atoms and electrons. This may one day lead to the discovery or design of better semiconductors, insulators, or superconductors that could be used to make ever faster, more powerful, and more energy-efficient electronics. https://phys.org/news/2024-10-quantum-simulator-uncover-materials-high.html Condensed Matter Quantum Physics Wed, 30 Oct 2024 15:49:04 EDT news649522141 An international research team led by QuTech has demonstrated a network connection between quantum processors over metropolitan distances. Their result marks a key advance from early research networks in the lab towards a future quantum internet. The team developed fully independent operating nodes and integrated these with deployed optical internet fiber, enabling a 25 km quantum link. The researchers' findings are published in the journal Science Advances. https://phys.org/news/2024-10-km-quantum-network-link-dutch.html Quantum Physics Wed, 30 Oct 2024 15:34:11 EDT news649521247 The close relationship between AI and highly complicated scientific computing can be seen in the fact that both the 2024 Nobel Prizes in Physics and Chemistry were awarded to scientists for devising AI for their respective fields of study. KAIST researchers have now succeeded in dramatically shortening the calculation time of highly sophisticated quantum mechanical computer simulations by predicting atomic-level chemical bonding information distributed in 3D space using a novel approach to teach AI. https://phys.org/news/2024-10-ai-method-drastically-shorten-quantum.html Quantum Physics Wed, 30 Oct 2024 15:00:54 EDT news649519251 Earlier this year, researchers at the Flatiron Institute's Center for Computational Quantum Physics (CCQ) announced that they had successfully used a classical computer and sophisticated mathematical models to thoroughly outperform a quantum computer on a task that some thought only quantum computers could solve. https://phys.org/news/2024-10-classical-quantum-game.html Condensed Matter Quantum Physics Tue, 29 Oct 2024 15:53:04 EDT news649435981 Since the first X-ray image of a comet was reported using an X-ray telescope in 1996, the investigation of charge exchange in collisions between highly charged ions and atoms or molecules has emerged as a hot research topic. https://phys.org/news/2024-10-scientists-evidence-breakdown-statistics-ion.html Quantum Physics Tue, 29 Oct 2024 11:45:48 EDT news649421145 In the context of quantum mechanics and information, "magic" is a key property of quantum states that describes the extent to which they deviate from so-called stabilizer states. Stabilizer states are a class of states that can be effectively simulated on classical computers. https://phys.org/news/2024-10-phase-transition-magic-quantum-random.html Quantum Physics Mon, 28 Oct 2024 11:50:01 EDT news649332033 For the first time, EPFL researchers have exclusively observed molecules participating in hydrogen bonds in liquid water, measuring electronic and nuclear quantum effects that were previously accessible only via theoretical simulations. https://phys.org/news/2024-10-spectroscopy-method-reveals-quantum-secrets.html Optics & Photonics Quantum Physics Fri, 25 Oct 2024 11:02:35 EDT news649072951 A team of researchers, led by scientist Lin Zhou of Ames National Laboratory, has made important progress towards understanding the role of surface oxides in improving quantum computing circuits performance. Surface oxides are a primary cause of decoherence, or loss of quantum properties in quantum circuits. https://phys.org/news/2024-10-scientists-gain-insight-material-defects.html Condensed Matter Quantum Physics Fri, 25 Oct 2024 10:30:03 EDT news649071001 For the first time ever, scientists at Paderborn University have used high-performance computing (HPC) at large scales to analyze a quantum photonics experiment. In specific terms, this involved the tomographic reconstruction of experimental data from a quantum detector. This is a device that measures individual photons. https://phys.org/news/2024-10-high-quantum-photonics.html Optics & Photonics Quantum Physics Thu, 24 Oct 2024 16:20:47 EDT news649005640 An old physical phenomenon known as the Hall effect has revealed some new tricks, according to a team co-led by researchers at Penn State and the Massachusetts Institute of Technology (MIT). They have reported their findings, which they said have potential implications for understanding the fundamental physics of quantum materials and developing applied technologies such as quantum communication and harvesting energy via radio frequencies in Nature Materials. https://phys.org/news/2024-10-room-temperature-nonreciprocal-hall-effect.html Condensed Matter Quantum Physics Thu, 24 Oct 2024 14:22:03 EDT news648998522 For the first time since the discovery of the material MnBi2Te4 (MBT), researchers at the University of Twente have successfully made it behave like a superconductor. This marks an important step in understanding MBT and is significant for future technologies, such as new methods of information processing and quantum computing. https://phys.org/news/2024-10-superconductivity-insights-quantum-material-mnbi8322te8324.html Superconductivity Quantum Physics Wed, 23 Oct 2024 13:59:02 EDT news648910741 Quantum theory describes events that take place on extremely short time scales. In the past, such events were regarded as 'momentary' or 'instantaneous': An electron orbits the nucleus of an atom—in the next moment it is suddenly ripped out by a flash of light. Two particles collide—in the next moment they are suddenly 'quantum entangled.' https://phys.org/news/2024-10-fast-quantum-entanglement-scientists-attosecond.html Quantum Physics Tue, 22 Oct 2024 11:20:12 EDT news648814801 Pioneers of quantum computing have shared their dreams and skepticism about the fledgling industry, while Gov. JB Pritzker said he thinks it's already attracting companies to Illinois. https://phys.org/news/2024-10-optimism-skepticism-quantum-summit-chicago.html Quantum Physics Tue, 22 Oct 2024 09:18:05 EDT news648807480 A new study has uncovered the universal dynamics far from equilibrium in randomly interacting spin models, thereby complementing the well-established universality in low-energy equilibrium physics. The study, recently published in Nature Physics, was the result of a collaborative effort involving the research group led by Prof. Du Jiangfeng and Prof. Peng Xinhua at the University of Science and Technology of China (USTC), along with the theoretical groups of Prof. Zhai Hui from Tsinghua University and Dr. Zhang Pengfei from Fudan University. https://phys.org/news/2024-10-physicists-uncover-universal-equilibrium-quantum.html Quantum Physics Mon, 21 Oct 2024 11:50:03 EDT news648730201 A research team has proposed a wind sensing lidar theory based on up-conversion quantum interference and successfully developed a prototype. Their work is published in ACS Photonics. https://phys.org/news/2024-10-quantum-lidar-high-sensitivity.html Optics & Photonics Quantum Physics Mon, 21 Oct 2024 11:45:03 EDT news648729901 Quantum defects have the potential to act as ultra-sensitive sensors that could offer new kinds of navigation or biological sensor technology. https://phys.org/news/2024-10-harnessing-diamond-imperfections-frontier-quantum.html Quantum Physics Thu, 17 Oct 2024 14:55:08 EDT news648395703 From subatomic particles to complex molecules, quantum systems hold the key to understanding how the universe works. But there's a catch: when you try to model these systems, that complexity quickly spirals out of control—just imagine trying to predict the behavior of a massive crowd of people where everyone is constantly influencing everyone else. Turn those people into quantum particles, and you are now facing a "quantum many-body problem." https://phys.org/news/2024-10-benchmark-hardest-quantum-problems.html Quantum Physics Thu, 17 Oct 2024 14:00:02 EDT news648138838 A team of computer engineers from the National Institute of Information and Communications Technology, NTT Corporation and Nagoya University have developed what they claim is the world's first superconducting flux qubit that can operate without the need for a surrounding magnetic field. https://phys.org/news/2024-10-superconducting-flux-qubit-magnetic-field.html Quantum Physics Thu, 17 Oct 2024 12:40:01 EDT news648387345 A new study opens the door to cutting-edge solutions that could contribute to the realization of a system capable of processing quantum information in a simple yet powerful way. https://phys.org/news/2024-10-quantum-breakthrough-synthetic-dimensions-efficiently.html Optics & Photonics Quantum Physics Thu, 17 Oct 2024 12:36:04 EDT news648387357 One of the most difficult problems with quantum computing relates to increasing the size of the quantum computer. Researchers globally are seeking to solve this "challenge of scale." https://phys.org/news/2024-10-quantum-scaling-recipe-arquin-framework.html Quantum Physics Thu, 17 Oct 2024 07:55:52 EDT news648370542 A major challenge in realizing quantum computers is the development of quantum error correction technology. This technology offers a solution for addressing errors that occur in the qubit, the basic unit of quantum computation, and prevents them from being amplified during the computation. https://phys.org/news/2024-10-hybrid-quantum-error-technique-discrete.html Quantum Physics Wed, 16 Oct 2024 16:04:33 EDT news648313465 Researchers from the Department of Energy's Oak Ridge National Laboratory have taken a major step forward in using quantum mechanics to enhance sensing devices, a new advancement that could be used in a wide range of areas, including materials characterization, improved imaging and biological and medical applications. https://phys.org/news/2024-10-reveal-quantum-advantage-advance-future.html Optics & Photonics Quantum Physics Wed, 16 Oct 2024 15:09:03 EDT news648310141