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The latest news in physics, materials science, quantum physics, optics and photonics, superconductivity science and technology. Updated Daily.

1. Scientists develop method to speed up quantum measurements using space-time trade-off17:00[-/+]

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In an attempt to speed up quantum measurements, a new Physical Review Letters study proposes a space-time trade-off scheme that could be highly beneficial for quantum computing applications.

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2. Quantum entanglement reveals strange metals' unique electron behavior at critical point13:55[-/+]

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Scientists have long sought to unravel the mysteries of strange metals—materials that defy conventional rules of electricity and magnetism. Now, a team of physicists at Rice University has made a breakthrough in this area using a tool from quantum information science. Their study, published recently in Nature Communications, reveals that electrons in strange metals become more entangled at a crucial tipping point, shedding new light on the behavior of these enigmatic materials. The discovery could pave the way for advances in superconductors with the potential to transform energy use in the future.

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3. Quantum imaging method developed for enhanced image clarityПт, 28 мар[-/+]

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For decades, quantum imaging has promised sharper images and greater light sensitivity than classical methods by exploiting the unique properties of quantum light, such as photon entanglement. But the approaches to do so rely on delicate, specially engineered light sources that are easily overwhelmed by real-world noise, and it is difficult to generate quantum light bright enough for practical use.

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4. Physicist revisits the computational limits of life and Schrodinger's essential question in the era of quantum computingПт, 28 мар[-/+]

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More than 80 years ago, Erwin Schrodinger, a theoretical physicist steeped in the philosophy of Schopenhauer and the Upanishads, delivered a series of public lectures at Trinity College, Dublin, which eventually came to be published in 1944 under the title "What is Life?"

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5. Efficient light control: Meta-optics replace conventional lensesПт, 28 мар[-/+]

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Conventional curved lenses, which direct light by refraction in glass or plastic, are often bulky and heavy, offering only limited control of light waves. Metasurfaces, in contrast, are flat and consist of an array of tiny structures known as meta-atoms. Meta-atoms influence light at a subwavelength scale and thus allow for highly precise control of the phase, amplitude, and polarization of light.

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6. Symmetry between up and down quarks is more broken than expectedПт, 28 мар[-/+]

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In late 2023, Wojciech Brylinski was analyzing data from the NA61/SHINE collaboration at CERN for his thesis when he noticed an unexpected anomaly—a strikingly large imbalance between charged and neutral kaons in argon–scandium collisions. He found that, instead of being produced in roughly equal numbers, charged kaons were produced 18.4% more often than neutral kaons.

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7. Commercial fusion power plant now closer to realityПт, 28 мар[-/+]

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Successfully harnessing the power of fusion energy could lead to cleaner and safer energy for all—and contribute substantially to combating the climate crisis. Towards this goal, Type One Energy has published a comprehensive, self-consistent, and robust physics basis for a practical fusion pilot power plant.

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8. Thermopower-based technique can detect fractional quantum Hall statesПт, 28 мар[-/+]

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If one side of a conducting or semiconducting material is heated while the other remains cool, charge carriers move from the hot side to the cold side, generating an electrical voltage known as thermopower.

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9. The first comprehensive characterization of unconventional superconductivity arising from multipolar momentsПт, 28 мар[-/+]

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Superconductivity is a quantum phenomenon, observed in some materials, that entails the ability to conduct electricity with no resistance below a critical temperature. Over the past few years, physicists and material scientists have been trying to identify materials exhibiting this property (i.e., superconductors), while also gathering new insights about its underlying physical processes.

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10. New superconducting state discovered: Cooper-pair density modulationПт, 28 мар[-/+]

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Superconductivity is a quantum physical state in which a metal is able to conduct electricity perfectly without any resistance. In its most familiar application, it enables powerful magnets in MRI machines to create the magnetic fields that allow doctors to see inside our bodies. Thus far, materials can only achieve superconductivity at extremely low temperatures, near absolute zero (a few tens of Kelvin or colder).

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11. Dirac's Plate Trick, the Hairy Ball Theorem and more: Research probes physics of irregular objects on inclined planesЧт, 27 мар[-/+]

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How gravity causes a perfectly spherical ball to roll down an inclined plane is part of the elementary school physics canon. But the world is messier than a textbook.

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12. Liquid-crystal platform overcomes optical losses in photonic circuitsЧт, 27 мар[-/+]

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Photonic circuits, which manipulate light to perform various computational tasks, have become essential tools for a range of advanced technologies—from quantum simulations to artificial intelligence. These circuits offer a promising way to process information with minimal energy loss, especially in fields like quantum computing where complex systems are simulated to test theories of quantum mechanics.

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13. Newly developed waveguide device protects photonic quantum computers from errorsЧт, 27 мар[-/+]

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Together with an international team of researchers from the Universities of Southern California, Central Florida, Pennsylvania State and Saint Louis, physicists from the University of Rostock have developed a novel mechanism to safeguard a key resource in quantum photonics: optical entanglement. Their discovery is published in Science.

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14. Topology-based quantum states resist noise, promising more stable networksЧт, 27 мар[-/+]

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Researchers have discovered a way to protect quantum information from environmental disruptions, offering hope for more reliable future technologies.

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15. Graphene-based programmable surfaces advance terahertz imaging and 6G communicationsЧт, 27 мар[-/+]

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Researchers at The University of Manchester's National Graphene Institute have introduced a new class of reconfigurable intelligent surfaces capable of dynamically shaping terahertz (THz) and millimeter (mm) waves. Detailed in a paper published in Nature Communications, this breakthrough overcomes long-standing technological barriers and could pave the way for next-generation 6G wireless technologies and non-invasive imaging systems.

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16. Beyond ambiguous reflections: Bridging optical 3D metrology and computer visionЧт, 27 мар[-/+]

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Accurate and robust 3D imaging of specular, or mirror-like, surfaces is crucial in fields such as industrial inspection, medical imaging, virtual reality, and cultural heritage preservation. Yet anyone who has visited a house of mirrors at an amusement park knows how difficult it is to judge the shape and distance of reflective objects.

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17. Terahertz imaging reveals new views of internal cochlea structureЧт, 27 мар[-/+]

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For the first time, researchers have shown that terahertz imaging can be used to visualize internal details of the mouse cochlea with micron-level spatial resolution. The non-invasive method could open new possibilities for diagnosing hearing loss and other ear-related conditions.

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18. Polymerlike worms wriggle their way through mazesЧт, 27 мар[-/+]

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In a crowded room, we naturally move slower than in an empty space. Surprisingly, worms can show the exact opposite behavior: In an environment with randomly scattered obstacles, they tend to move faster when there are more obstructions. Viewing the worms as "active, polymerlike matter," researchers at the University of Amsterdam have now explained this surprising fact.

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19. Physicists discover a copper-free high-temperature superconducting oxideЧт, 27 мар[-/+]

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Professor Ariando and Dr. Stephen Lin Er Chow from the National University of Singapore (NUS) Department of Physics have designed and synthesized a groundbreaking new material—a copper-free superconducting oxide—capable of superconducting at approximately 40 Kelvin (K), or about minus 233°C, under ambient pressure.

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20. Study uncovers origin of the large neutron-capture cross section in 88Zr using new methodologyЧт, 27 мар[-/+]

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Studies that explore how the denser sections of atoms, known as atomic nuclei, interact with neutrons (i.e., particles with no electric charge) can have valuable implications both for the understanding of these atoms' underlying physics and for the development of nuclear energy solutions. A process that is central to these interactions is neutron capture, which entails the absorption of a neutron by a nucleus, followed by the emission of gamma-rays.

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21. Theoretical physicists completely determine the statistics of quantum entanglementСр, 26 мар[-/+]

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For the first time, theoretical physicists from the Institute of Theoretical Physics (IPhT) in Paris-Saclay have completely determined the statistics that can be generated by a system using quantum entanglement. This achievement paves the way for exhaustive test procedures for quantum devices.

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22. Quantum randomness and nonlocality: New insights from MIMO systemsСр, 26 мар[-/+]

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Researchers from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences revealed that not all forms of quantum nonlocality guarantee intrinsic randomness. They demonstrated that violating two-input Bell inequalities is both necessary and sufficient for certifying randomness, but this equivalence breaks down in scenarios involving multiple inputs. The study is published in Physical Review Letters.

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23. Elusive electronic rotons, detected for first time, reveal formation of Wigner crystallites in 2D electron liquidСр, 26 мар[-/+]

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For decades, researchers have explored how electrons behave in quantum materials. Under certain conditions, electrons interact strongly with each other instead of moving independently, leading to exotic quantum states. One such state, first proposed by Nobel laureate Eugene Wigner, is the Wigner crystal—a structured electron arrangement caused by their mutual repulsion. Although widely theorized, experimental proof has been rare.

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24. Quantum computing milestone: 56-qubit computer provides truly random number generationСр, 26 мар[-/+]

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In a new paper in Nature, a team of researchers from JPMorganChase, Quantinuum, Argonne National Laboratory, Oak Ridge National Laboratory and The University of Texas at Austin describe a milestone in the field of quantum computing, with potential applications in cryptography, fairness and privacy.

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25. Novel protocol enables photon entanglement without quantum measurementСр, 26 мар[-/+]

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Georgia Tech researchers recently proposed a method for generating quantum entanglement between photons. This method constitutes a breakthrough that has potentially transformative consequences for the future of photonics-based quantum computing.

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26. Hypersonic shock waves: 3D simulations expose new flow disturbancesСр, 26 мар[-/+]

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At hypersonic speeds, complexities occur when the gases interact with the surface of the vehicle, such as boundary layers and shock waves. Researchers in the Department of Aerospace Engineering at The Grainger College of Engineering, University of Illinois Urbana-Champaign, were able to observe new disturbances in simulations conducted for the first time in 3D.

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27. A new piece in the matter–antimatter puzzle: A fundamental asymmetry in the behavior of baryonsСр, 26 мар[-/+]

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On March 24, at the annual Rencontres de Moriond conference taking place in La Thuile, Italy, the LHCb collaboration at CERN reported a new milestone in our understanding of the subtle yet profound differences between matter and antimatter.

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28. Entangled in self-discovery: Quantum computers analyze their own entanglementСр, 26 мар[-/+]

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Similar to humans going on journeys of self-discovery, quantum computers are also capable of deepening their understanding of their own foundations.

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29. A new benchmark for quantum electrodynamics in atoms: Precision measurement of boron-like tin ion's g factorСр, 26 мар[-/+]

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Highly charged heavy ions form a very suitable experimental field for investigating quantum electrodynamics (QED), the best-tested theory in physics describing all electrical and magnetic interactions of light and matter. A crucial property of the electron within QED is the so-called g factor, which precisely characterizes how the particle behaves in a magnetic field.

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30. Listening to quantum atoms talk together thanks to acousticsВт, 25 мар[-/+]

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What happens when a quantum physicist is frustrated by the limitations of quantum mechanics when trying to study densely packed atoms? At EPFL, you get a metamaterial, an engineered material that exhibits exotic properties.

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