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. Superconductors are materials that conduct electricity with zero electrical resistance below specific temperatures. Most of these materials become superconducting at very low temperatures, but some also exhibit superconductivity at higher temperatures. https://phys.org/news/2026-08-sought-zhang-rice-singlet-visualized.html Superconductivity Wed, 12 Aug 2026 08:00:01 EDT news705663782 A University of Kansas physicist played a leading role in a CERN study showing that two rival explanations for how gluons behave inside atomic nuclei can now be experimentally distinguished. https://phys.org/news/2026-08-cern-conventional-gluons-atomic-nuclei.html General Physics Tue, 11 Aug 2026 17:40:04 EDT news705672722 When certain atoms are irradiated with laser light, they can produce a very different kind of laser light: laser pulses with extremely high frequencies in the X-ray range. These laser pulses, which helped achieve record-breaking results at TU Wien in the 1990s, were the subject of the 2023 Nobel Prize in Physics. https://phys.org/news/2026-08-rays-nobel-prize-limit.html Optics & Photonics Tue, 11 Aug 2026 13:40:07 EDT news705665527 Researchers at the University of Basel and the Technical University of Munich have developed a new method to reveal the collective motion of electrons in one of the most elusive states of matter: the Wigner crystal. Using light, the physicists were able to uncover previously inaccessible properties of this fragile quantum state. https://phys.org/news/2026-08-optical-method-reveals-internal-dynamics.html Optics & Photonics Tue, 11 Aug 2026 05:00:03 EDT news705591481 Every electronic and optoelectronic device generates heat, and today that heat is managed almost entirely from the outside. Heatsinks, fans, cold plates and refrigerators are bulky exterior measures bolted onto a chip or package after the fact. They treat heat as a single averaged quantity to be removed in bulk, even though the heat is actually produced locally, component by component, deep inside the circuitry. https://phys.org/news/2026-08-quantum-circuits-electronics-oldest-power.html Condensed Matter Mon, 10 Aug 2026 16:40:10 EDT news705585471 Over the last decade, researchers have developed two-dimensional materials with fascinating quantum effects that could be harnessed for next-generation technologies. https://phys.org/news/2026-08-discovery-electrons-2d-material-memory.html Condensed Matter Mon, 10 Aug 2026 13:20:05 EDT news705584761 Using light to process quantum information is one of the most promising approaches to building future quantum computers. Light particles, known as photons, are excellent carriers of quantum information, but their lack of natural interactions has created a major challenge for researchers seeking to build systems capable of performing a full range of computations. https://phys.org/news/2026-08-shifting-architecture-versatility-photonic-quantum.html Optics & Photonics Fri, 07 Aug 2026 17:00:01 EDT news705325201 In Goethe's ballad "Erlkönig," immortalized in Schubert's fevered 1815 setting, a dying boy riding through the night sees a spectral king beckoning from the darkness. His father calms him: "Mein Sohn, es ist ein Nebelstreif"—my son, it is only a wisp of fog. In the poem, the father's reassurance proves tragically wrong. In the quantum world, however, his words acquire an uncanny new meaning. https://phys.org/news/2026-08-mirror-world-particles-wisps-fog.html General Physics Fri, 07 Aug 2026 16:40:02 EDT news705324723 A tall glass of ice water isn't just a thirst quencher; it's also an everyday example of coexisting phases. Water can exist simultaneously in both liquid and solid phases. As it turns out, this phase duality can also exist in more exotic quantum materials, in ways that are far more complicated to tease apart. https://phys.org/news/2026-08-physicists-material-electrons-reassemble-coexisting.html Condensed Matter Fri, 07 Aug 2026 12:00:01 EDT news705315901 Three years after a team of Caltech scientists showed that pairs of entangled photons could double the resolution of a light microscope, the same lab has figured out a way to double down on that improvement. They have now achieved a fourfold resolution boost compared to a classical microscope, using a new optical design that sends one of the entangled photons through the microscope's optics three times rather than just once. https://phys.org/news/2026-08-quantum-microscopy-quadruples-microscope-resolution.html Optics & Photonics Thu, 06 Aug 2026 17:20:01 EDT news705248785 At the International Conference on High Energy Physics in Brazil, the BESIII Collaboration report that, after 15 years of sustained research, it identified the dominant constituent of the X(2370) as a pseudoscalar glueball with spin-parity quantum numbers of 0⁻⁺. https://phys.org/news/2026-08-x2370-emerges-glueball-dominated-particle.html General Physics Thu, 06 Aug 2026 13:00:01 EDT news705231062 Quantum errors are a normal part of quantum computing because fragile physical qubits (the tiny components storing data) can easily break down because of environmental noise, like heat, stray signals or microscopic vibrations. Typical fixes involve vast amounts of extra hardware qubits, which make computers larger, more expensive and harder to build. https://phys.org/news/2026-08-qubit-entangling-gate-flags-errors.html Optics & Photonics Thu, 06 Aug 2026 12:40:01 EDT news705228588 Today's quantum technologies rely on energy-intensive lasers, raising concerns that scaling them up could further increase energy demands. In new work, researchers have demonstrated that quantum entanglement between photons can be generated directly from sunlight, offering a potential alternative. https://phys.org/news/2026-08-sunlight-powered-setup-generates-quantum.html Optics & Photonics Thu, 06 Aug 2026 10:00:04 EDT news705152641 An international team of researchers has succeeded in producing atomic quantum gas mixtures with an unprecedented particle flux. In the journal Nature Communications, the scientists report on experiments conducted with the MAIUS-B apparatus, in which Bose–Einstein condensates (BECs) consisting of two different atomic species—rubidium and potassium—were generated and studied under microgravity conditions in the Einstein Elevator at Leibniz University Hannover in Germany. https://phys.org/news/2026-08-miniaturized-laser-technology-paves-fundamental.html Optics & Photonics Wed, 05 Aug 2026 19:40:04 EDT news705162354 Super-thin superconducting materials, which are only one or a few atoms thick, have unique properties scientists can leverage to produce more compact, scalable, and efficient quantum devices. But these fragile materials degrade so rapidly in air that they are difficult to study or manufacture. https://phys.org/news/2026-08-air-stable-ultrathin-superconductors-scalable.html Superconductivity Wed, 05 Aug 2026 19:00:01 EDT news705161101 In early 2025, special signals wended their way through a fiber-optic highway strung above the streets and sidewalks of the Maryland suburbs. The arrival of those signals at their destination marks a significant step toward a long-held dream of building a "quantum network." Researchers believe that this emerging technology could someday link quantum devices in ways that supercharge scientific research, enable ultrasecure communications and boost the power of future quantum computers. https://phys.org/news/2026-08-spooky-particles-transit-dc-suburbs.html Optics & Photonics Wed, 05 Aug 2026 16:30:01 EDT news705164821 One of the most famous and intriguing results of quantum mechanics is the finding that fundamental particles, such as electrons, cannot be pinned down to one single location. Instead, a particle is described by its "wavefunction," which allows researchers to derive probability distributions—a sort of mathematical map that shows the possibilities—of fundamental properties such as its position and momentum. In particular, the electron wavefunctions within a molecule, known as "molecular orbitals," carry information about how the molecule interacts with its surroundings. For example, they show how it may absorb light or how a chemical reaction might take place. https://phys.org/news/2026-08-molecular-orbitals-imaged-3d-path.html Optics & Photonics Tue, 04 Aug 2026 18:00:01 EDT news705077522 Bose-Einstein condensates (BECs) are often described as a "fifth state of matter": a quantum state in which many particles lose their individual identities and behave as one collective object. For more than 60 years, researchers have sought to create such condensates from excitons—electron-hole pairs—as a solid-state route to macroscopic quantum coherence, which is useful for quantum technologies. This has been difficult to realize in controllable semiconductor devices because optically generated excitons have very short lifetimes of around a billionth of a second, and BECs are normally attained with ultracold gases in a vacuum. https://phys.org/news/2026-08-quantum-fluid-reveals-hidden-states.html Condensed Matter Tue, 04 Aug 2026 17:40:02 EDT news705076621 Scientists from Rice University in the U.S. have developed a way to precisely tune the temperature inside a trapped-ion simulator. The breakthrough means they will be able to run quantum simulations at precise temperatures that better reflect real-world conditions. https://phys.org/news/2026-08-temperature-dial-realistic-quantum-simulations.html Quantum Physics Tue, 04 Aug 2026 17:00:01 EDT news705070203 Digital security currently relies on difficult equations to protect data. For example, when you use a credit card online, the information is locked inside a math problem that would take a modern computer thousands of years to solve. However, if someone builds a powerful enough computer, that security breaks. https://phys.org/news/2026-08-quantum-encryption-method-ciphertext-cloned.html Quantum Physics Mon, 03 Aug 2026 17:20:04 EDT news704987395 Ruthenium dioxide (RuO2) is a metal oxide that commonly serves as an important metallic conductor, quantum material and industrial electrocatalyst. While there have been debates surrounding the magnetic properties of RuO2, it is generally thought to be nonmagnetic in its bulk form. But now, a new study, published in Science Advances, has found that very thin layers of RuO2 can become magnetic when its lattice is placed under strain. https://phys.org/news/2026-07-unusual-metal-oxide-magnetism-lattice.html Condensed Matter Sat, 01 Aug 2026 14:40:01 EDT news704715788 IBM and researchers from the University of Chicago announced a demonstration in quantum computing that meets the fundamental criteria for "quantum advantage"—the point where quantum computers can be confirmed to have outperformed classical computers on trusted computations. https://phys.org/news/2026-07-quantum-task-classical-simulations.html Quantum Physics Sat, 01 Aug 2026 08:00:05 EDT news704644006 Researchers in the Department of Electrical and Computer Engineering at the University of Illinois Urbana-Champaign have discovered a new type of quantum light emitter in diamonds that could help overcome a number of challenges facing quantum technologies. https://phys.org/news/2026-07-diamond-newfound-defect-vibrations-hinder.html Optics & Photonics Fri, 31 Jul 2026 11:40:08 EDT news704711281 In mathematics and getting dressed, some processes are commutative, while others are noncommutative. Commutative means the order doesn't matter (3 + 2 is the same as 2 + 3, and it doesn't matter which sock goes on first). Noncommutative means the order does matter. https://phys.org/news/2026-07-explored-quantum-code-powerful-stable.html Quantum Physics Fri, 31 Jul 2026 10:00:04 EDT news704709901 Semiconductor spin qubits are one of the most promising building blocks for future quantum computers, but turning them into a working, large-scale quantum computer has so far proven difficult. For now, two big questions remain open: how to connect qubits that aren't sitting right next to each other, and how to control huge numbers of them without an unmanageable tangle of wiring. https://phys.org/news/2026-07-independent-semiconductor-qubits-scales.html Condensed Matter Fri, 31 Jul 2026 07:20:04 EDT news704643614 Quantum fluctuations influence direction-dependent electrical transport in chiral magnets, researchers from Science Tokyo report. In chiral magnetic systems, electric current flows differently depending on its direction, but the role of quantum effects in this behavior has remained unclear. Through theoretical analysis, the researchers showed that chiral magnetic systems exhibit logarithmic temperature dependence at low temperatures, offering new insights into electron transport in magnetic materials. These findings are expected to play a crucial role in spintronics. https://phys.org/news/2026-07-quantum-effects-electrical-chiral-magnets.html Condensed Matter Thu, 30 Jul 2026 17:30:01 EDT news704648701 Large-scale quantum communication networks require both reliable quantum memories and coherent single-photon sources that can exchange quantum information efficiently. A coherent source of single photons with narrow linewidth, high brightness, spectral uniformity and compatibility with quantum memories is necessary. While a variety of single-photon sources, such as quantum dots (QDs) and atoms in warm vapor cells, have been developed in recent years, each has inherent limitations, making a scalable and functional quantum network challenging to achieve. https://phys.org/news/2026-07-cesium-atoms-quantum-dots-generate.html Optics & Photonics Thu, 30 Jul 2026 16:20:07 EDT news704640781 For years, researchers have tried to harness the "twist" of light to transmit data. This property describes how light spirals as it travels forward, and because it can be molded into a virtually infinite number of different twists, it provides a massive, promising alphabet for high-capacity communication. https://phys.org/news/2026-07-hidden-properties-quantum-chaos-bad.html Optics & Photonics Thu, 30 Jul 2026 13:40:01 EDT news704630222 A new study in Nature Communications has established a link between the Riemann Hypothesis and dynamical phase transitions in engineered quantum systems, demonstrating the effect on a quantum processor. https://phys.org/news/2026-07-physicists-link-riemann-hypothesis-phase.html General Physics Thu, 30 Jul 2026 12:20:05 EDT news704628909 Bose–Einstein condensates are states of matter that form when particles called bosons are cooled to temperatures that are only a fraction of a degree above absolute zero (i.e., 0 Kelvin [-460°F]). In these states, particles occupy the same quantum state and exhibit interesting collective behaviors, essentially behaving as if they were a single "super-particle." https://phys.org/news/2026-07-physicists-boseeinstein-condensate-ultracold-polar.html Condensed Matter Thu, 30 Jul 2026 07:40:03 EDT news704539595