https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Researchers have developed and demonstrated a new hybrid photonic platform that integrates quantum emitters with photonic devices, providing a way to reliably control the interaction between photons and quantum information carriers. The chip-based platform, which combines gallium phosphide (GaP) with a diamond substrate, could help make quantum networks more practical by providing a way to connect quantum devices over long distances. https://phys.org/news/2026-10-hybrid-diamond-chip-interactions-quantum.html Optics & Photonics Sun, 18 Oct 2026 09:00:05 EDT news711300067 The vast majority of modern quantum technologies—from quantum cryptography to the quantum internet to the quantum computer—rely on one essential element: the transmission of photons. Two qubits (two atoms, for example) exchange information: One qubit emits a photon, and the other qubit absorbs it. https://phys.org/news/2026-09-photons-reliable-quantum-communication.html Optics & Photonics Mon, 14 Sep 2026 12:20:06 EDT news708602102 So far, quantum computers have been held back by their extreme sensitivity to errors and external disturbances. The longer a quantum operation takes, the greater the risk of computational errors. https://phys.org/news/2026-09-faster-reliable-quantum-closer.html Quantum Physics Thu, 10 Sep 2026 13:40:10 EDT news708256741 Researchers from Graz University of Technology (TU Graz), Harvard and the University of Texas at Austin (UT Austin) have developed an innovative method for coupling light non-linearly. This opens up new possibilities for telecommunications and quantum technology. https://phys.org/news/2026-09-nanostructure-linear-conversion-efficient.html Nanophysics Wed, 02 Sep 2026 13:40:08 EDT news707568302 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 Mathematics has always been at the core of securing information. From online banking to government communications, modern society relies on cryptography, in which complex mathematical algorithms transform readable information into an unreadable form to keep it secure. But as computing power grows and quantum technology advances, these mathematical safeguards are increasingly vulnerable to being broken. That's where biology stepped in. https://phys.org/news/2026-07-dna-origami-secret-messages-nanomorse.html Biotechnology Tue, 14 Jul 2026 11:20:07 EDT news703241682 Scientists from the Faculty of Physics at the University of Warsaw, in collaboration with teams from the National University of Singapore and Radboud University in the Netherlands, have observed single-photon emission from layered two-dimensional material ZnPS₃. This discovery represents a crucial step toward establishing low-dimensional materials as a versatile platform for quantum information science. The research findings were published in the journal ACS Nano. https://phys.org/news/2026-06-layered-znps-emits-photons-path.html Nanophysics Tue, 30 Jun 2026 17:10:01 EDT news702055261 A public-private partnership in the Mountain West announced new results today that mark steady progress toward the Department of Energy's goal of fault-tolerant quantum computing, systems large and reliable enough to solve complex problems. https://phys.org/news/2026-06-helios-quantum-tops-fidelity-qubit.html Quantum Physics Wed, 17 Jun 2026 18:40:03 EDT news700920721 Quantum computers, systems that process information leveraging quantum mechanical effects, have the potential of outperforming classical computers on some tasks. Despite their potential, the use of these systems remains very limited, due to their high cost and other challenges that have so far prevented their large-scale fabrication. https://phys.org/news/2026-06-surrogates-quantum-overhead.html Quantum Physics Sat, 06 Jun 2026 13:20:01 EDT news699875533 Quantum computing, once only a theoretical possibility, promises to deliver faster, more energy-efficient computers—but only if scientists can build and scale the hardware needed to run the machines. New research from Virginia Commonwealth University brings scientists one small step closer to quantum computing at a practical scale, which could help dramatically reduce energy usage and computing times in some industries. https://phys.org/news/2026-06-nanomagnets-diamond-qubits-scalable-quantum.html Condensed Matter Wed, 03 Jun 2026 16:20:04 EDT news699717662 Creating perfect randomness is surprisingly difficult. Even modern random number generators never generate completely ideal random numbers: small systematic errors can result in some numbers appearing slightly more frequently than others. For many applications, this does not matter. In cryptography, however, even the tiniest deviations can be problematic. https://phys.org/news/2026-05-randomness.html Quantum Physics Wed, 27 May 2026 14:20:06 EDT news699105902 New research led by a graduating Ph.D. student in The University of New Mexico Department of Electrical and Computer Engineering has shown that randomization can improve quantum computer performance in the presence of noise. https://phys.org/news/2026-05-randomization-quantum-presence-noise.html Quantum Physics Mon, 25 May 2026 15:20:01 EDT news698939823 For more than 60 years, Bell's theorem has been the gold standard for demonstrating that quantum mechanics defies the rules of classical physics. Now, an international team of researchers, including Constructor University Professor Dr. Nicolas Gisin, has extended this principle to new limits, using an "elegant triangle" to reveal new forms of quantum nonlocality that specifically emerge in multi-node quantum networks. https://phys.org/news/2026-05-elegant-triangle-quantum-internet-closer.html Quantum Physics Mon, 11 May 2026 10:40:05 EDT news697713301 The spin-off company ParityQC has implemented the largest quantum Fourier transform ever reported using an IBM quantum computer, thereby setting a new milestone on the path toward the industrial application of quantum computers. The quantum Fourier transform is a cornerstone algorithm with applications in cryptography, financial modeling, and materials science. https://phys.org/news/2026-04-quantum-fourier-qubits-shattering-previous.html Quantum Physics Thu, 16 Apr 2026 12:20:08 EDT news695556421 A University of Sydney quantum physicist has developed a new approach to quantum error correction that could significantly reduce the number of physical qubits required to build large-scale, fault-tolerant quantum computers. The study, co-authored by Dr. Dominic Williamson from the School of Physics, is titled "Low-overhead fault-tolerant quantum computation by gauging logical operators" and published in Nature Physics. https://phys.org/news/2026-03-approach-quantum-error-portends-scalable.html Quantum Physics Thu, 02 Apr 2026 05:00:03 EDT news694191061 Quantum computers of the future may be closer to reality thanks to new research from Caltech and Oratomic, a Caltech-linked start-up company. Theorists and experimentalists teamed up to develop a new approach for reducing the errors that riddle today's rudimentary quantum computers. Whereas these machines were previously thought to require millions of qubits to work properly (qubits being the quantum equivalent to 1's and 0's in classical computers), the new results indicate that a fully realized quantum computer could be built with as few as 10,000 to 20,000 qubits. The need for fewer qubits means that quantum computers could, in theory, be operational by the end of the decade. https://phys.org/news/2026-04-quantum-built-qubits-team.html Quantum Physics Wed, 01 Apr 2026 14:20:04 EDT news694260841 A research team led by Professor Jiwoong Yang of the Department of Energy Science and Engineering at DGIST has developed next-generation optical sensor technology capable of precisely detecting not only the intensity and wavelength of light but also its rotational direction—the spin information of photons. The team successfully implemented a quantum-dot-based optical sensor that can detect circularly polarized light (CPL) across an ultra-wide spectral range—from ultraviolet to short-wave infrared—demonstrating photodetection performance comparable to that of commercial silicon optical sensors. The paper is published in Advanced Materials. https://phys.org/news/2026-03-generation-optical-sensor-photon-uv.html Optics & Photonics Mon, 30 Mar 2026 18:00:04 EDT news694102621 Light-based quantum technologies, such as quantum communication and photonic quantum computing, require reliable sources of individual photons and, ideally, pairs of entangled photons. Semiconductor quantum dots are promising candidates for this purpose. These nanostructures have electrical conductivity between that of insulators and conductors and are capable of confining electrons and holes. This property causes them to emit light at well-defined frequencies when excited by a laser. https://phys.org/news/2026-03-local-droplet-etching-yields-symmetric.html Optics & Photonics Thu, 12 Mar 2026 17:30:03 EDT news692553782 Quantum computers—devices that process information using quantum mechanical effects—have long been expected to outperform classical systems on certain tasks. Over the past few decades, researchers have worked to rigorously demonstrate such advantages, ideally in ways that are provable, verifiable and experimentally realizable. https://phys.org/news/2026-02-quantum-algorithm-classical-tools-complement.html Quantum Physics Mon, 23 Feb 2026 07:50:03 EST news690808435 As quantum computers continue to advance, many of today's encryption systems face the risk of becoming obsolete. A powerful alternative—quantum cryptography—offers security based on the laws of physics instead of computational difficulty. But to turn quantum communication into a practical technology, researchers need compact and reliable devices that can decode fragile quantum states carried by light. https://phys.org/news/2026-02-laserwritten-glass-chip-quantum-communication.html Optics & Photonics Mon, 09 Feb 2026 16:53:38 EST news689878381 A team of researchers at Queen's University has developed a powerful new kind of computing machine that uses light to take on complex problems such as protein folding (for drug discovery) and number partitioning (for cryptography). Built from off-the-shelf components, it also operates at room temperature and remains remarkably stable while performing billions of operations per second. The research was published in Nature. https://phys.org/news/2026-02-based-ising-room-temperature-stays.html Optics & Photonics Sat, 07 Feb 2026 13:00:04 EST news689608592 A hundred years ago, quantum mechanics was a radical theory that baffled even the brightest minds. Today, it's the backbone of technologies that shape our lives, from lasers and microchips to quantum computers and secure communications. https://phys.org/news/2026-01-cat-years-quantum-weirdness-powers.html Quantum Physics Tue, 20 Jan 2026 15:47:36 EST news688146395 A tiny device that entangles light and electrons without super-cooling could revolutionize quantum tech in cryptography, computing, and AI. https://phys.org/news/2025-12-scientists-advance-quantum-technology.html Optics & Photonics Tue, 02 Dec 2025 13:40:01 EST news683904546 Quantum computers will be able to assume highly complex tasks in the future. With superconducting quantum processors, however, it has thus far been difficult to read out experimental results because measurements can cause interfering quantum state transitions. https://phys.org/news/2025-12-calibrating-qubit-quantum-reliable.html Superconductivity Mon, 01 Dec 2025 12:02:42 EST news683812922 When a system undergoes a transformation, yet an underlying physical property remains unchanged, this property is referred to as "symmetry." Spontaneous symmetry breaking (SSB) occurs when a system breaks out of this symmetry when it is most stable or in its lowest-possible energy state. https://phys.org/news/2025-11-strong-weak-symmetry-impossible.html General Physics Mon, 01 Dec 2025 06:30:01 EST news683544543 Everyday life on the internet is insecure. Hackers can break into bank accounts or steal digital identities. Driven by AI, attacks are becoming increasingly sophisticated. Quantum cryptography promises more effective protection. It makes communication secure against eavesdropping by relying on the laws of quantum physics. However, the path toward a quantum internet is still fraught with technical hurdles. https://phys.org/news/2025-11-quantum-teleportation-photons-distant-sources.html Optics & Photonics Tue, 18 Nov 2025 12:59:04 EST news682693141 The dream of creating game-changing quantum computers—supermachines that encode information in single atoms rather than conventional bits—has been hampered by the formidable challenge known as quantum error correction. https://phys.org/news/2025-11-physicists-unveil-barrier-generation-supercomputers.html Quantum Physics Thu, 13 Nov 2025 09:17:04 EST news682247821 Quantum satellites currently beam entangled particles of light from space down to different ground stations for ultra-secure communications. New research shows it is also possible to send these signals upward, from Earth to a satellite; something once thought unfeasible. https://phys.org/news/2025-11-scientists-reveal-feasible-quantum-earth.html Optics & Photonics Wed, 05 Nov 2025 11:36:09 EST news681564965 The artificial intelligence (AI) boom has created unprecedented demand for data traffic. But the infrastructure needed to support it faces mounting challenges. AI data centers must deliver faster, more reliable communication than ever before, while also confronting their soaring electricity use and a looming quantum security threat, which could one day break today's encryption methods. https://phys.org/news/2025-10-optical-terabit-capacity-quantum-cryptography.html Optics & Photonics Mon, 20 Oct 2025 14:22:03 EDT news680188921 Three scientists won the Nobel Prize in physics Tuesday for research on the strange behavior of subatomic particles called quantum tunneling that enabled the ultra-sensitive measurements achieved by MRI machines and laid the groundwork for better cellphones and faster computers. https://phys.org/news/2025-10-nobel-prize-physics-scientists-discoveries.html General Physics Tue, 07 Oct 2025 06:01:36 EDT news679035669