Quantum computing and others quantum

Researchers can now put numerical error limits on quantum simulations, showing how much confidence to place in their results. As quantum simulators become powerful enough to tackle problems beyond the reach of conventional computers, a difficult question follows: how can researchers know whether their answers are accurate? When classical calculations are still possible, the two [...]

IBM and University of Chicago researchers have completed a quantum computation that leading classical methods could not practically reproduce. The system used 70 error-corrected logical qubits and finished the task in roughly 15 minutes while also providing statistical evidence that the result was reliable.

Mark Bergen / Bloomberg: A look at the race to build quantum computers, as the tech becomes a geopolitical battleground with potential to transform cybersecurity, finance, and more  —  Companies are racing to create devices that could revolutionize finance, supercharge medical and climate research …

Scientists have unveiled a new fabrication technique for the ultra-clean manufacturing of 2D heterostructures – materials just a

University of Arizona researchers have demonstrated a promising new application for graphene nanoribbons, a nanoscale semiconductor material with

A new method could help quantum computers avoid one of their most persistent problems: the hardware itself is unevenly noisy, and the best place to run a quantum circuit can change from one moment to the next. Researchers from the Indian Institute of Science and IBM have developed “quality indicator circuits,” or QICs, lightweight test […]

An Anthropic model cut the work needed to break a leading post-quantum signature candidate by a factor of 67 million last month, while Bitcoin and Ethereum published their own migration plans this week.

Emily Forgash / Bloomberg: Shares of French quantum computing company Pasqal closed up 95% in their Nasdaq debut on Friday following a merger with a SPAC  —  Pasqal Holding SA soared in its first day of trading after the quantum computing company went public in New York via a merger with a blank-check firm …

Will Knight / Wired: Anthropic releases Model Hardware Standard, a framework to help AI agents use physical systems like microscopes, quantum computing hardware, and robot arms  —  The potential for AI to automate scientific research and manufacturing must be balanced with new risks, Anthropic says.

Table tennis professionals are true masters at redirecting fast-moving projectiles. Putting a targeted spin on a serve can make the little white ball fly straight toward the edge of the table but then, at the last moment, take a sharp curve into the left corner. The physical phenomenon behind this sporting trick is known as the Magnus effect. It acts on balls of all sizes and has helped decide more than a few soccer matches.

Game studio MiTale Ltd. is promoting a narrative-driven post-apocalyptic RPG, which it claims is 'the first commercial game on the market utilizing quantum computing.'

Author(s): Julian G. Mann, Johannes Kunze, Nivedita Pan, Ekaterina Kostyurina, Markus Döblinger, Bert Nickel, Jochen Feldmann, and Sushant GhimireHere, the authors uncover size-dependent exciton formation and biexciton dynamics in AgInS 2 quantum dots, an environmentally friendly I-III-VI semiconductor alternative. Exciton formation proceeds through phonon-mediated inter-valence-band hole relaxation. This process becomes progressively slower with decreasing quantum dot size, in contrast to the Coulomb-mediated relaxation characteristic of II-VI quantum dots. These dynamics govern the emergence of distinct exciton-to-biexciton transitions. The biexciton lifetime increases with crystallite size, with the largest quantum dots exhibiting partial biexciton

While quantum computing could be the future, it is currently plagued by finicky hardware. To make the technology practical, researchers must demonstrate that it consistently and continuously works and performs at scale. In a new study, published in Physical Review Letters, researchers at Lawrence Livermore National Laboratory (LLNL) and the Ion Storage Group at the National Institute of Standards and Technology in Boulder, Colorado, created a robust process for entangling trapped-ion qubits. The result means better building blocks for ion-based quantum computers.

The race to build a useful quantum computer is heating up

Quantum physicists have developed a new framework for understanding how entanglement can be shared—and strategically redistributed—inside a three-party quantum system. The study, published in Quantum Information Processing, examines monogamy inequalities for the entanglement of assistance in systems with the structure (2otimes2otimes d). In practical terms, two of the parties are quantum bits, while the third […]

Scientists could have a new way to explore the hidden behavior of matter, thanks to research involving Queen Mary University of London that uses a quantum computer to carry out a new form of computational spectroscopy.

As autism rises to a national priority, StarHealing translates quantum-inspired modeling and AI into breakthrough neurodevelopmental care. From

A quantum computer that runs itself using an internal clock can only compute accurately if that clock is precise, and that precision comes with a thermodynamic cost The post Quantum computers may pay a price for keeping time appeared first on Physics World.

IBM cools two connected fridges to a hundredth of a degree above absolute zero, but the temperature is arguably the least impressive part of its achievement.

Author(s): Claudia Piccinini, Aleksander Rodek, Abdulmalik A. Madigawa, Ailton Garcia, Jr., Saimon F. Covre da Silva, Martin A. Jacobsen, Luca Vannucci, Gregor Weihs, Armando Rastelli, Vikas Remesh, Niels Gregersen, and Battulga MunkhbatHere, the authors implement the recently proposed Swing-UP of the quantum emitter population (SUPER) scheme to investigate the coherent preparation of exciton and biexciton states in GaAs quantum dots using two red-detuned laser pulses. The experiments show that, by tuning the polarization and energy of the utilized pulses, one can achieve highly efficient preparation of an individual exciton state, a coherent superposition of fine-structure-split exciton states, or the biexciton state, establishing the SUPER scheme as a versatile tool for selective quantum-state preparation. [Phys. Rev. B 114, 105306] Published Mon Aug 24, 2026

There's a new lighthouse on Long Island. But instead of shining light to guide ships through waterways, this one transmits and receives particles of light that carry quantum information. Perched atop a seven-story building at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, the "Quantum Lighthouse" is a key pillar of the free-space optical (FSO) link spanning Brookhaven Lab, the State University of New York at Stony Brook (Stony Brook University) and Yale University.

Electron microscopes are used wherever particularly small details need to be imaged. But from a strictly physical point of view, every electron in a conventional electron microscope represents a missed opportunity: If all you do is count electrons, any additional quantum information they carry remains unused.

In early 2025, special signals wended their way through a fiber-optic highway strung above the streets and sidewalks

Less than a year after earning his doctoral degree in chemical and biomolecular engineering from Rice University, Thiago

Author(s): C. M. Bowers, D. Palani, J. J. Barta, T. H. Guglielmo, S. B. Libby, D. Leibfried, and D. H. SlichterAdiabatic ramping of both state-dependent force amplitude and motional frequency delivers high-fidelity trapped-ion entanglement without ground-state cooling. [Phys. Rev. Lett. 137, 080602] Published Thu Aug 20, 2026

A Major Release for the Go Ecosystem The Go team has officially released Go 1.27, marking a significant milestone in the language's evolution. This release brings substantial enhancements across the language specification, toolchain, runtime, and standard library. With features ranging from generic methods to post-quantum cryptography support, Go 1.27 represents a maturation of the language and a commitment to addressing modern security and performance challenges. Language Enhancements: Making G...

Quantum computers hold great promise for applications from drug discovery to cybersecurity. Yet figuring out what would give quantum computers their edge over everyday "classical" computers is a subtle problem. A new theoretical study led by researchers at the Cavendish Laboratory shows that quantum computers are harder to make powerful than previously assumed while offering the clearest picture yet of what actually makes them work.

IBM's new modular cryogenic system links quantum chips to overcome major infrastructure hurdles and pave the way for a powerful system by 2029.

By remotely accessing an IBM quantum computer through the Quantum Computer User Program (QCUP) — a quantum computing access program

No one yet knows which technology will power the quantum computers of the future, but the race to create them has already produced some of science’s most intricate machinery. The post Building a Quantum Computer, One Fragile Qubit at a Time first appeared on Quanta Magazine

Appendix A of the 24-page document rewrites the federal Critical and Emerging Technologies list for the first time since February 2024.

To commercialize quantum computing, manufacturers need high-quality superconducting materials for microchips, but they also require a reliable, sustainable nanofabrication process. Tantalum is a corrosion-resistant metal that meets the first criterion but not the second. That's because it has to be deposited on a substrate at temperatures that typically exceed 400°C (752°F)—too hot for many semiconductor foundries' current tools.

Quantum communication promises many advantages over today's standard technologies, including absolutely secure transmission of large amounts of data. However, it requires single photons—and generating them is very difficult. Researchers at the Technical University of Munich (TUM) and the Munich Center for Quantum Science and Technology (MCQST) have developed a new method that overcomes the problems of previous approaches.

In the global race to build bigger and better quantum computers, researchers have taken a step forward. A new machine called Helios is radically different from other quantum computers.

Optical fibers are already the backbone of global communication systems. Recently, however, physicists have started to explore how their functionality could be boosted further by conveying information via entangled quantum particles—potentially enabling instantaneous exchanges of information across vast distances. Such a system could eventually be the basis of a future 'quantum internet,' offering a level of security and computing power beyond anything possible today.

Quantum sensors, devices that collect measurements by exploiting quantum-mechanical phenomena, could potentially detect extremely weak magnetic, gravitational and electromagnetic signals with greater sensitivity than classical sensors. Some quantum sensors leverage entanglement, a phenomenon that prompts distant particles to become so strongly linked that the physical state of one particle dictates the state of the others.

Researchers have demonstrated a quantum computation that appears to exceed the practical capabilities of leading classical simulation methods while also addressing a longstanding problem: how to verify the result. A quantum computer completed a difficult calculation in about 15 minutes, while leading classical simulation methods would require prohibitive amounts of time. Just as importantly, the [...]

New classical simulation technique makes it practical to benchmark large-scale logical magic-state preparation protocols under realistic noise conditions The post Shortcut for simulating logical magic states could accelerate the design of fault-tolerant quantum computers appeared first on Physics World.

Many fascinating phases in quantum materials emerge when electrons, atoms and other microscopic components begin to act collectively. But these phases do not necessarily appear out of nowhere when a material crosses a transition temperature. Before long-range order develops, microscopic fluctuations can already be present.

Isabelle Bousquette / Wall Street Journal: BCG: enterprise users spent a total of $300M on quantum computing in 2025, outranking the combined spending of research labs and governments for the first time  —  Many companies are pouring millions into quantum computing programs to gain a competitive edge and prepare for future encryption threats

Recently, the field of magnetics has been proposed a new class of magnetism called altermagnetism, which could allow

A tiny superconducting engine has successfully converted heat near absolute zero into useful work, demonstrating the first cyclic quantum heat engine of its kind. Future versions could operate autonomously inside quantum computers, potentially eliminating huge numbers of costly, noise-producing microwave cables.

South Korea is banking on moonshots in a post-AI economy to stem sluggish growth potential amid an ageing population and deepening reliance on its semiconductor exports. From quantum chips and fusion power to a lunar landing, Seoul this week unveiled a strategy to build seven next-generation industries over the coming decades. The aim is to secure a foothold in technologies shaping a post-AI world before superpowers the United States and China pull further ahead. The move marks mounting urgency...

Quantum computing has alternated between breakthrough darling and overhyped promise in technology circles. Its powerful new capabilities come with a threat to break current cryptography, but for business leaders navigating the noise, the signal should be clear: post-quantum cryptography (PQC) is a manageable evolution, not a crisis. The mathematics behind today’s encrypted digital transactions may…

MIT physicists have uncovered a surprising split in the behavior of electrons inside a quantum material: two nearly identical electronic patterns rebuild themselves in fundamentally different ways. Electrons inside a solid do not always behave like independent particles. Under the right conditions, enormous numbers of them can reorganize together, producing entirely new states of matter [...]

All four Pixel 11 models run Google’s Tensor G6 alongside a new Titan M3 security coprocessor that adopts NIST’s post-quantum cryptography standards, a first for a Google phone. The chip claims 25% faster browsing and 20% better power efficiency, with a TPU carrying 50% more compute. Every Pixel 11 ships with Google’s new Tensor G6, […] This story continues at The Next Web

Oracle and Quantinuum have agreed a multi-year partnership under which Quantinuum will physically install its Helios quantum computer inside a US Oracle Cloud Infrastructure AI data centre, and Oracle will sell access to it as a managed OCI service. No financial terms were disclosed, no launch customer was named, and no firm date was given […] This story continues at The Next Web

Author(s): H. P. Binney, H. D. Pinckney, K. Azar, P. M. Harrington, S. Jha, M. Li, J. Yang, F. Contipelli, R. DePencier Piñero, M. Gingras, B. M. Niedzielski, H. Stickler, M. E. Schwartz, J. A. Grover, M. Hays, K. Serniak, J. A. Formaggio, and W. D. OliverSuperconducting qubits are promising for quantum computing, but their performance is hindered by correlated errors from environmental factors like ionizing radiation and cryocooler vibrations. The authors distinguish these error types in the same device by their distinct features, and use accelerometers to directly link specific errors to pulse tube vibrations. This study also reveals that qubits engineered to resist radiation are protected against these vibration-induced errors as well. Identifying the sources of correlated errors will inform future mitigation strategies for building more robust quantum

Organizations must become quantum-ready before today's cryptography becomes tomorrow's liability.

Saxon Q built a room-temperature diamond quantum computer using sulfur-stabilized qubits, though scaling and independent verification remain unresolved.

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.

Graphite has long been a workhorse of industry – used in pencils since the 1500s, in steelmaking during the 1800s, and today in battery electrodes. Research from Peking University now suggests it could even play a role in next-generation quantum computers. According to a paper published on July 23 by the peer-reviewed journal Science, the research team has cleared a major obstacle on the road to practical quantum computers and come up with a realistic platform for the production of...

Quantum's first public good may be protecting the digital world it is about to transform.

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 million-dollar math mystery may someday be resolved in a physics lab. A new study brings this vision one step closer.

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 […]

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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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 …

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 [...]

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.

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.

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.

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.

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.

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.

Three approaches to the issue of quantum results that can't be verified classically.

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

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

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.

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.

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 […]

Companies are making sure we have a surplus of options for building qubits.

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.

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

Tamara Djurickovic / Tech.eu: ETH Zurich spinout ZuriQ, which is developing trapped-ion quantum computing processors based on a 2D architecture, raised a $25.5M seed led by Quantonation  —  ZuriQ has secured seed funding to scale its trapped-ion quantum computing technology, expand its team, accelerate research and development …

A new concept from Warwick researchers could help solve one of the biggest challenges to building large-scale quantum computers: enabling communication between vast numbers of quantum bits (qubits) over long distances across a single chip.

The discovery could improve thermal management in electronics and support advances in quantum and next-generation computing technologies. Heat usually spreads outward through a solid, making it difficult to control once it begins moving. Until now, a wavelike form of heat transport called phonon focusing had been observed only at extremely low, or cryogenic, temperatures, sharply [...]

Hong Kong’s banking sector is still in the early stages of preparing for cybersecurity risks posed by quantum computing, the city’s de facto central bank said on Monday as it unveiled a new benchmark to track the industry’s readiness. The Hong Kong Monetary Authority (HKMA) launched its first Quantum Preparedness Index (QPI), which gave the sector a score of 2.3 out of 10, indicating that most banks are still building the foundations for a transition to the quantum era. The index, based on a...

As estimates for “Q-Day” move closer, experts warn that crypto’s slow governance, not its cryptography, may be the biggest obstacle to defending against quantum attacks.

Imagine holding one of our most precise quantum devices at a fixed position outside a black hole. A Josephson junction—two superconductors separated by an ultrathin barrier—can turn a voltage into a quantum oscillation with extraordinary precision. Would intense gravity change that quantum rule, or only change how a faraway observer reads the device?