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Quantum computing and others quantum
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.
A proof-of-principle experiment used concentrated sunlight to produce entangled photons
A new experiment has shown that sunlight, rather than a power-hungry laser, can generate entangled photons—particles of light whose properties remain mysteriously linked even when the photons travel apart. The result could reshape how quantum technologies are powered, offering a route toward systems that use the abundant natural light available on Earth and in space. […]
Astronomers may have just confirmed one of the quirkiest aspects of quantum mechanics: that seemingly empty space can alter the behavior of light. This phenomenon, called "vacuum birefringence," was first predicted nearly 90 years ago by Werner Heisenberg, one of the founding fathers of quantum mechanics. He suggested that even a perfect vacuum should be teeming with "virtual particles" that rapidly pop in and out of existence.
A million-dollar math mystery may someday be resolved in a physics lab. A new study brings this vision one step closer.
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.
Yonatan Cohen of Quantum Machines is our podcast guest The post Building bridges between quantum and classical computing appeared first on Physics World.
Zulfi Alam thinks his team doesn’t need to “prove” they engineered a new state of matter in their bid to reinvent computing. Science would disagree.
The world's first portable, room-temperature quantum computer with more than 10 qubits utilizes flawed lab-made diamonds. The quantum system fits into a standard server rack and connects to a typical power grid.
Two-dimensional superconductors have long been viewed as promising building blocks for next-generation quantum technologies, but their practical use has been limited by a stubborn materials problem: they are often extremely vulnerable to air. A team led by researchers including X. Zheng, S. Zaman and K. Zhang now reports a method that could remove one of […]
A quantum signal has completed a difficult journey through 62 kilometers of aerial fiber in the Maryland suburbs, surviving the vibrations, temperature changes and movement that normally make overhead telecommunications lines hostile to delicate quantum information. The achievement, reported by researchers at the National Institute of Standards and Technology (NIST), the Joint Quantum Institute and […]
Near-infrared light is invisible to the human eye, yet it quietly powers some of the technologies shaping modern life. It is used in optical communications, biomedical monitoring, industrial inspection, intelligent sensing, and imaging systems that allow machines to perceive information beyond the visible spectrum. Now, researchers have developed a lead-free quantum-dot photodetector that combines unusually […]
Two strongly coupled superconducting states can disguise themselves as a single energy gap in ultrathin materials. Two ultrathin superconductors appeared to have a simple internal structure, but closer measurements revealed something more complex. Instead of relying on one superconducting state, each material contains two strongly coupled states whose combined behavior makes them look like a [...]
For decades, physicists have been trying to understand what happens when a material that should conduct electricity instead behaves like an insulator—and what changes when electrons are gradually added. Now, a new experiment using ultracold atoms has captured a key transformation predicted in the Hubbard model: the emergence of a pseudogapped metal, a strange state […]
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.
Researchers created an electrically tunable quantum nanoscale corral that traps charged excitons and enables precise electrical control of tiny light sources, including their brightness, color and quantum states, the team, led by Boston College physicists, reports today in Nature Nanotechnology.
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.
Boston College researchers have created an electrically controlled “quantum nanocorral” that traps light-emitting particles inside an atomically thin semiconductor, opening a new route toward tunable quantum light sources. The nanoscale device can control the brightness, color, and quantum states of the emitted light, according to a study published in Nature Nanotechnology. The work addresses a […]
Company noted for building quantum annealers now also making gate-based hardware.
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Quantum computing is approaching faster than expected. Discover why organizations must prepare now to avoid tomorrow’s cybersecurity crisis.
The symmetry of vanadium’s crystal structure acts as a switch for hydrogen’s quantum behavior. Inside a vanadium crystal, hydrogen can travel in two very different ways. It may move as a conventional particle that needs enough energy to jump between locations, or behave like a quantum wave that passes through barriers. Researchers have now identified [...]
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.
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.
A diamond-based quantum sensor inserted into a living cell can provide previously unseen levels of detail about how life works and how diseases form. "Think of it as an EKG for a single cell—a way to capture everything happening inside at once, in real time," said University of Chicago Pritzker School of Molecular Engineering professor Aaron Esser-Kahn. "We routinely monitor vital signs in people—heart rate, breathing, temperature—but until now, there simply hasn't been an equivalent way to take a cell's vitals."
Author(s): Lasse Gresista, Daniel Lozano-Gómez, Matthias Vojta, Simon Trebst, and Yasir IqbalA minimal, materials-relevant spin-1/2 model on the breathing pyrochlore lattice, tuned solely by symmetry-allowed Dzyaloshinskii–Moriya interactions, gives robust quantum realizations of both rank-1 and rank-2 U(1) Coulomb liquids. [Phys. Rev. Lett. 137, 066504] Published Tue Aug 04, 2026
Scientists at Los Alamos National Laboratory have demonstrated a new quantum-dot mechanism that could significantly expand the reach of light-driven chemistry. By introducing magnetic manganese dopants into semiconductor quantum dots, the team created an ultrafast spin-exchange pathway that captures hot-electron energy before it is lost as heat and uses it to drive chemical reduction.
Photons traveling through a cloud of atoms can emerge so early that they appear to have spent a negative amount of time inside. Researchers tested whether this was merely a misleading feature of the light pulse by making extremely weak measurements of the atoms. Surprisingly, the atoms confirmed the same negative dwell time. The finding does not break standard physics, but it reveals that one of quantum mechanics’ strangest effects is physically measurable.
Bloomberg: Sources: China's CXMT is set to manufacture small quantities of LPDDR6 smartphone memory by the end of 2026, as it seeks to compete with SK Hynix and Samsung — China's state-backed CXMT Corp. is poised to produce smartphone memory chips that are on par with the industry's most advanced designs …
The CNBC personality said he’ll sell his Bitcoin holdings due to fears about quantum computing, as some cryptocurrency investors celebrated, referencing the popular “inverse Cramer” meme.
Jim Cramer says he's dumping his bitcoin over quantum computing fears, but his track record of crypto and bank calls has buoyed the crypto community.
A newly published correction in Light: Science & Applications is drawing renewed attention to a remarkable question at the intersection of quantum physics, nanotechnology and light: how can a free electron lose its quantum coherence through radiation, even when it is travelling far from the material or structure that generates the electromagnetic field? The study, […]
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Distributed energy resources (DERs), including rooftop solar panels and other customer-owned technologies, are rapidly transforming the way electricity moves through the grid. A new forecasting framework developed by researchers at Carnegie Mellon University could help utilities predict where adoption will accelerate, quantify the uncertainty surrounding those predictions, and prepare infrastructure before local networks become overwhelmed. […]
After promising to learn from its role in a failed “Super League” that fueled fan anger, the Wall Street bank is involved in FIFA’s latest meltdown.
A new computational tool could change the way scientists judge whether lab-grown kidney tissue truly resembles the human organ—and whether it can accurately reveal the damage caused by drugs and environmental chemicals. Researchers Lee, Kang, Lim and colleagues have introduced KiGEP, a quantitative algorithm designed to calculate human kidney similarity and nephrotoxicity in human kidney […]
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.
Peter Hall / Scientific American: Two independent teams used GPT-5.6 Sol Ultra on the same quantum cryptography problem, filing papers 3 hours apart, raising questions about scientific credit — An M.I.T. Ph.D. student and two University of California system cryptographers used GPT-5.6 Sol Ultra in different ways …
In this episode, David Ariosto speaks with former NASA Administrator Jim Bridenstine, who is now the CEO of Quantum Space. Bridenstine talks about the strategic shift to proliferation in low […] The post Jim Bridenstine on his new role at Quantum Space appeared first on SpaceNews.
Researchers demonstrated that braiding and fusing particles known as non-Abelian anyons can perform every operation required by a quantum computer. A quantum computer becomes broadly useful only when it can perform any computation rather than a limited set of specialized tasks. Physicists have now demonstrated that unusual quantum objects called non-Abelian anyons can provide that [...]
Researchers achieved the first real-world demonstration of quantum entanglement over a busy telecommunications fiber network. A single photon carrying quantum information had to travel more than 24 kilometers through an optical fiber already crowded with powerful internet signals. Despite the noise, it reached downtown Chicago still entangled with its partner at Northwestern University’s Evanston campus. [...]
OpenAI: OpenAI says an internal version of Astra, its next big model, produced results for 10 problems in math, quantum complexity, and theoretical computer science — Read the paper(opens in a new window)Read the reasoning walkthroughs(opens in a new window) — We want to empower scientists …
Physicists have uncovered a surprising limit to electrical resistance caused by particles colliding. Using ultracold potassium atoms trapped in a grid of light, researchers created a highly controlled stand-in for electrons moving through a solid. As collisions became more frequent and intense, resistance initially rose, but eventually hit a ceiling and stopped increasing.
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.
A new clinical trial is opening a potentially important chapter in the treatment of primary plasma cell leukemia, a rare and exceptionally aggressive blood cancer that can overwhelm the bloodstream with malignant plasma cells. The Alliance for Clinical Trials in Oncology has announced activation of the QUANTUM Trial, also known as Alliance A062401, which will […]
A few atomic layers of ruthenium dioxide may be revealing a hidden form of magnetism that disappears in the material’s ordinary bulk state, according to a new study from Rice University and collaborators at the University of Minnesota and the Paul Scherrer Institute. The finding places ultrathin ruthenium dioxide, or RuO₂, at the center of […]
After a successful trial at a substation, China plans to expand the application of quantum technologies – including precision sensors and computer simulations – across its power grid to help prevent blackouts. During the 18-month trial in Hefei in Anhui province, quantum technology was used to rapidly detect and diagnose equipment defects and faults in the power system, according to a report published on Wednesday by the party mouthpiece People’s Daily. Quantum technology harnesses the physics...
Jody Godoy / Reuters: The FTC clears quantum computing company IonQ's $1.8B acquisition of chipmaker SkyWater after the FTC's two members disagreed at first on imposing conditions — The U.S. Federal Trade Commission cleared quantum computing firm IonQ's (IONQ.N) $1.8 billion acquisition of chipmaker SkyWater Technology …
Arvind Krishna said quantum computing will begin generating meaningful revenue before the decade ends as investment in the sector accelerates, in an interview on CNBC.
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.
How even small but frequent disruptions can cause quantum computers to fail. Quantum computers are expected to tackle difficult tasks more quickly and with less energy than current supercomputers, including molecular simulations and complex logistics planning. Progress toward that goal depends partly on increasing the number of qubits, the basic units that store and process [...]
The firm’s board raised the sale cap to 4,375 ETH through Oct. 30, nearly 66% of June holdings, although 3,050 of its remaining ETH is pledged.
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.
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.
Using IBM's quantum computer, scientists say they have shown in three different experiments that quantum computers can outpace classical machines in useful computations.
The UK’s quantum procurement strategy could prove far more significant than the £2 billion investment itself.
IBM CEO Arvind Krishna said the company's investments in quantum computing should begin to have "a measurable impact" on revenue and earnings by 2028 or 2029.
The Alliance for Clinical Trials in Oncology today announced the activation of The QUANTUM Trial (Alliance A062401), a clinical study designed to test a novel, immune-targeting approach for patients newly diagnosed with primary plasma cell leukemia (PCL).
Researchers 3D-nanoprinted hollow-core Photonic Scaffolds with up to 80% cladding openness, with models predicting attenuation at or below 1 dB/mm at that openness and experiments measuring sub-1 dB/mm losses at 68% openness. The waveguides supported dye diffusion in about 34 seconds, a 1.4 nL effective interaction volume, and quantum-dot emission with output photon statistics consistent with single-photon emission after transmission.
As the U.S. and Iran exchange strikes, more countries are being touched — and some are joining in.
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.
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.
Cleveland Clinic and IBM researchers are using quantum computing to tackle one of the most challenging problems in immuno-oncology: predicting which tumor mutations will trigger an immune response.
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.
Three approaches to the issue of quantum results that can't be verified classically.
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.
Author(s): E. García-Hemme, R. Benítez-Fernández, S. Duarte-Cano, F. Pérez-Zenteno, S. Algaidy, C. Mata-Alonso, S. de Castro-Romero, R. García-Hernansanz, J. Olea, A. del Prado, E. San Andrés, I. Mártil, and D. PastorA new light-trapping architecture could lead to CMOS-compatible night-vision technology. [Phys. Rev. Lett. 137, 057002] Published Wed Jul 29, 2026
When astronomers talk about directly imaging an exoplanet orbiting a faraway star, the analogy they most commonly use is trying to spot a firefly next to a massive searchlight. An Earth-like exoplanet is incredibly dim—usually between 100 million and 10 billion times fainter than its host star.
Six days ago, IBM agreed to buy a quantum-computing lab that builds a kind of qubit IBM does not. This week, the lab showed the world why. HRL Laboratories published a result in Nature on Wednesday: a silicon quantum processor that, in effect, runs itself. The Malibu research house is jointly owned by Boeing and […] This story continues at The Next Web
Gao, X., Tian, M., Sun, FX. et al. Classifying multipartite continuous-variable entanglement structures through data-augmented neural networks. Nat Mach Intell (2026). https://doi.org/10.1038/s42256-026-01284-y https://doi.org/10.1038/s42256-026-01284-y
Researchers in City College of New York physicist Vinod M. Menon’s Laboratory for Nano and Micro Photonics (LaNMP) have outlined
The HAWK system isn't deployed anywhere, and Bitcoin doesn't use it. But is sitting in the same quantum race that Bitcoin developers are scrambling to finish.
image: Thermal treatment of ZnMgO nanoparticles reduces the density of oxygen vacancies and increases the nanoparticle size, enabling quantum dot light-emitting diode (QLED) devices to achieve uniform electroluminescence with high efficiency, bright luminance and longer operating lifetime. view more Credit: Nano Research, Tsinghua University Press Self-emissive quantum dot light-emitting diodes (QLEDs) are widely regarded as a […]
Electrons zipping through transistors, powering the screens on our smartphones. Light zooming from distant stars to Earth, moving faster than anything else in the universe. Protons enabling MRI machines to analyze people's injuries.
When astronomers talk about directly imaging an exoplanet that is orbiting a far away star, the analogy they most commonly go with is trying to spot a fireflight next to a massive search light. An Earth-like exoplanet is incredibly dim - usually between 100 million and 10 billion times fainter than its host star. Understandably, that makes them very difficult to see. But a new paper from Hyunsoo Choi of Hanyang University in South Korea and his co-authors, which is available in pre-print on arXiv, describes a theoretical solution - use a mix of smart computer algorithms and quantum physics.
image: By correlating molecular design with quantum spin effects, single-molecule spin devices can realize a variety of functional prototypes, including spin valves, spin filters, and quantum logic elements, through precise manipulation of spin states at the single-molecule level, providing a comprehensive roadmap for developing next-generation low-power spintronic technologies. view more Credit: Nano Research, Tsinghua University […]
Photon-driven electron excitation is a foundational mechanism underpinning the interaction between light and matter in quantum materials, including van der Waals materials, Dirac and Weyl semi-metals, topological insulators and other emergent phases. These enable next-generation optoelectronic, energy conversion and quantum information technologies. However, translating this mechanistic understanding into an engineering implementation is hindered by excitation […]
Most electronic memory storage devices require the ability to trap large numbers of electrons for each bit of memory. In an ideal world, however, it would take only one electron. This would reduce space requirements and power consumption for devices. Now, a team in China has realized this goal with an ultrathin device capable of minimizing the stray capacitance that plagued earlier attempts. The new study, published in Science, describes how this novel device has overcome challenges in implementing the single-electron design.
Companies are making sure we have a surplus of options for building qubits.
New calculations seem to have put a 25-year-old particle physics puzzle to rest. But they’ve also created a clash with other experimental results. The post Physicists Solve a Big Quantum Mystery. Now, Old Results Don’t Add Up. first appeared on Quanta Magazine
Leron Borsten and Shanti Pise report from a week-long event that sought to teach quantum physics to teenagers The post Can a 16-year-old really understand quantum teleportation? appeared first on Physics World.
Quantum technologies are devices and systems that exploit the laws of quantum mechanics and could perform tasks that are difficult or impossible to tackle using their classical counterparts. These technologies process and store information using qubits (i.e., quantum bits), which can exist in a superposition of multiple states simultaneously.
One of the myths of post-quantum computing is that IT leaders can make no meaningful progress until they launch a dedicated transformation programme, but there are simple, impactful steps you can take today
The round builds on the company’s $4.2m pre-seed round in 2025 and will be used to scale and grow the organisation’s quantum ambitions. Read more: Quantum computing company ZuriQ to scale tech amid $25.5m raise