The first complete design for a quantum grandfather clock uses a single atom, tiny mirrors and light. Building it could help our understanding of what makes any clock accurate in the quantum realm and explore ideas at the edge of physics. At the most rudimentary level, time can be measured with something simple, like sand trickling through an hourglass. But timekeeping became a lot more accurate once mechanical clocks, like the grandfather or pendulum clock, were invented in the 17th century. Matteo Brunelli at Collège de France and his colleagues have now shown that such clocks have a quantum equivalent. “We asked ourselves the question: ‘Can a pendulum clock work according to the laws of quantum mechanics?’ We couldn’t be sure,” he says. Each pendulum clock has three basic elements, starting with the pendulum that defines the clock’s ticks with its swings. Next are the weights within the clock that leverage gravity’s downward pull to make the pendulum move. Finally, a pendulum clock requires an “escapement mechanism”, which converts the pendulum’s swings into the motion of the clock’s arms and provides the pendulum with little kicks of energy to prevent friction from slowing it down. Specifically, for the pendulum to keep swinging left-to-right by the same amount every time, the escapement mechanism must control the up-and-down motion of the weights. The researchers developed a mathematical model that replicated all these features with quantum objects. In their design, the clock is a cavity comprising two mirrors that face each other – one is fixed and the other can oscillate back-and-forth. Between the mirrors sits an atom that can have three different energies. Tiny temperature fluctuations in the cavity’s environment make the atom transition from one energy to another, and some transitions are accompanied by the atom emitting a photon. This photon
May 28, 2026 · via newscientist.com
Researchers from The University of Osaka stabilize an exotic cobalt-based honeycomb structure that could help advance low-cost quantum technologies Osaka, Japan – Honeycombs are famous for their elegant design, but now they may have found a new application: quantum computing. To collect knowledge from subatomic particles, quantum computers require carefully designed materials capable of performing necessary, complex functions. However, the metals used, such as ruthenium and iridium, are often rare and expensive, limiting the potential to build new technology. In an article recently published in Physical Review Materials, researchers from SANKEN at The University of Osaka and collaborating institutions reported the creation of a special thin-film material in which cobalt atoms formed local honeycomb arrangements embedded inside a larger honeycomb matrix. These cobalt honeycomb motifs exhibit strong magnetic interactions, which are important for quantum computing applications. Kitaev materials, a class of quantum magnetic materials studied for their potential use in quantum information science, have attracted major attention because they may host exotic quantum states known as spin liquids. In spin liquids, unlike typical liquid matter, the arrangement of spin can stay fluid even when the temperature drops. This is because the needle-like spins constantly flip as they are unable to satisfy all the forces influencing them. One approach to form these liquids involves using a honeycomb-shaped crystal lattice, in which strong interactions between neighboring magnetic ions can be competing intensely. “Previous work in this area has largely been limited to rare metals like ruthenium and iridium,” says lead author Hao-Bo Li. “We asked whether cobalt, one of the most common transition metals on Earth, could be made to form the same honeycomb structure and display the same intriguing physics.” The team created their material by adding about 4% cobalt into sodium antimonate (NaSbO3), a compound that already possesses a layered
May 28, 2026 · via asiaresearchnews.com
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May 28, 2026 · via youtube.com
Quantinuum plans to raise as much as USD$1.05 billion through a Nasdaq initial public offering (IPO), positioning the company for what could become the largest traditional IPO yet for a quantum computing firm. The company updated its SEC filing Tuesday and said it intends to offer about 21 million shares priced between USD$45 and USD$50 each. Additionally, the shares are expected to trade under the ticker QNT on the Nasdaq exchange. At the top of the proposed range, Quantinuum could achieve a fully diluted valuation near USD$12.7 billion, according to Reuters figures referenced in the filing. Furthermore, the IPO would represent one of the most significant public market debuts in the emerging quantum computing sector. Traditional IPOs generally involve stricter regulatory scrutiny than special purpose acquisition company mergers. Consequently, institutional investors often view them as more credible pathways to public markets. Quantinuum emerged in 2021 after Honeywell International Inc. (NASDAQ: HON) merged Honeywell Quantum Solutions with Cambridge Quantum. The transaction combined Honeywell’s trapped-ion quantum hardware with Cambridge Quantum’s software and algorithm business. The updated filing provides investors with one of the clearest financial pictures yet of a major standalone quantum computing company. In addition, it outlines Quantinuum’s revenue growth, operational losses and research ambitions. Quantinuum reported USD$30.9 million in revenue during 2025, compared with USD$23 million one year earlier. Meanwhile, the company generated USD$5.2 million in revenue during the quarter ended March 31, 2026. The company also reported substantial losses as it continued expanding research and development programs. According to the filing, Quantinuum posted a net loss of USD$192.6 million in 2025. Read more: BMW and Quantinuum deepen multi-year quantum computing alliance Read more: Solana tests quantum-resistant crypto as early trials show major speed tradeoffs Quantinuum generated USD$79.3M in bookings in 2025 That figure increased from a USD$144.1 million loss
May 28, 2026 · via mugglehead.com
[co-author: Rachel de Souza] Quantum computing is poised to profoundly reshape the cybersecurity landscape, with significant legal and regulatory implications. By introducing fundamentally different computational methods, enabling the simultaneous processing of multiple possibilities, quantum computing has the potential to undermine and ultimately render many traditional encryption techniques ineffective. The result is a significant systemic risk across critical infrastructures, including financial systems, communications networks, and digital identity frameworks. The risk is not theoretical: threat actors are already “harvesting” encrypted data with a view to decrypting it once quantum capabilities mature. Regulators are signalling that organisations cannot afford to wait. With expectations shifting toward quantum‑resilient security, businesses that fail to assess and plan for the transition could face significant enforcement, reputational damage, and litigation risk. As quantum computing converges with AI to accelerate cyber threats, the message is clear: quantum readiness is no longer a future concern—it is a present-day priority. Key steps include identifying and prioritising cryptographic assets, building quantum resistant measures into technology environments, embedding quantum risk into governance and risk assessments, and planning for a structured transition to quantum‑resistant standards. Early action will be critical to maintaining compliance and resilience as the threat landscape evolves. Our full article – a review of the legal implications of quantum computing and its ability to overcome current cryptography methods – is available on our Algorithm to Advantage insights page. [View source.]
May 28, 2026 · via jdsupra.com
Quantinuum, a quantum computing company backed by Honeywell International, has filed for a US initial public offering seeking to raise up to $1.05 billion as investor enthusiasm around quantum computing continues to grow. The company plans to offer approximately 21 million shares priced between $45 and $50 per share, according to a filing with the US Securities and Exchange Commission. At the top end of the range, Quantinuum would command a market valuation of approximately $12.7 billion based on outstanding shares listed in the filing. Founded in 2021 through the merger of Honeywell Quantum Solutions and Cambridge Quantum, Quantinuum develops quantum computing systems designed to solve highly complex computational problems beyond the capabilities of traditional computers. The company is targeting applications across chemistry, machine learning, cybersecurity, finance, and drug discovery. Quantinuum said companies including Amgen and Mitsui & Co. are among its early users and collaborators. “We believe that we are executing a roadmap to the first commercial-scale, fully fault-tolerant quantum computer before the end of this decade, the Apollo system,” CEO Rajeeb Hazra wrote in a letter to investors included in the filing. The company reported a net loss of $136.6 million on revenue of $5.2 million for the quarter ended March 31, compared with a net loss of $30.5 million on revenue of $19.1 million during the same period a year earlier. Investor interest in quantum computing has accelerated alongside the broader artificial intelligence boom. Shares of D-Wave Quantum have surged more than 200% in 2025 after gaining over 800% the prior year, while Rigetti Computing previously climbed nearly 3,000% between early 2023 and the end of 2025 before retreating from peak levels. The Trump administration recently announced more than $2 billion in funding for US quantum computing firms. Quantinuum is expected to receive $100 million under the
May 27, 2026 · via pulse2.com
As part of its $2 billion infusion into the quantum computing sector, the U.S. government is taking equity stakes in three publicly traded pure-play quantum computing companies: D-Wave Quantum (QBTS 0.79%), Rigetti Computing (RGTI 2.00%), and Infleqtion (INFQ 3.40%). Each will receive up to a $100 million investment. Their stocks skyrocketed on the news, but should retail investors follow Washington's lead and buy in? 1. D-Wave Quantum NYSE: QBTS Key Data Points D-Wave Quantum is targeting the quantum computing market in two distinct yet intertwined ways. The company is a leader in quantum annealing, a narrow-purpose technology that can be used to find answers that are the best or close to the best ones for specific types of complex problems. While there is a wide array of computing tasks that it's not suitable for, quantum annealing excels at optimization problems, and these come up frequently in industries like logistics, finance, and defense. This specialized technology is further along in the commercialization process; D-Wave is already selling its Advantage II systems to commercial customers. Meanwhile, the company is looking to take what it learned from developing its annealing technology and apply it to create a more traditional gate-based quantum computer. It will use fluxonium qubits, a type of superconducting qubit that is similar to those it uses for its annealing technology. And through its acquisition of Quantum Circuits in January, it has added a dual-rail gate-model processor that has built-in error detection. It thinks this can help it create a system with the fidelity (accuracy) of the trapped-ion technology used by IonQ, but with the speed of superconducting qubits. D-Wave aims to use the government's investment to speed up its development of a 100,000-qubit annealing system and a 10,000-qubit gate-model system. 2. Rigetti Computing NASDAQ: RGTI Key Data Points Rigetti Computing
May 27, 2026 · via fool.com
The orderly flow of information around the globe depends a lot on security, and at the heart of that security is randomness. Modern-day encryption relies on unpredictability to avoid being cracked, and the most powerful form of unpredictability is randomness. And in a new study, researchers describe a new way to amplify that randomness. Random number generators have been around for ages, but they often have subtle imperfections that cause patterns to emerge. And even powerful computers are saddled with this liability purely because they use traditional transistors to generate the binary code—1’s and 0’s—that enables computers to store data and make calculations. On supporting science journalism If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today. “Any conventional electronic device like a phone or a computer is completely deterministic, so it’s actually very difficult for a computer or any other electronic device to generate a random value,” says Renato Renner, a physics professor at the Swiss Federal Institute of Technology Zurich (ETH Zurich) and a member of the research team. “It cannot just toss a coin because everything that goes on in the scale of the logic is basically completely predictable.” While these numbers may seem random at first glance, a quantum computer would be able to recognize even the most obscure patterns and thus crack the code. “Unpredictability is very important because that’s what the adversary would do to attack it—to just try to predict parts of that password or even the full password or parts of the key,” Renner says. That’s where the new system comes in. Qubits, the basic components of information in a quantum computer, don’t exist in a binary.
May 27, 2026 · via scientificamerican.com
La Sierra University is among the first in the United States to address a looming threat to data security by piloting a quantum-safe virtual private network for 25 staff members. The initiative, launched in collaboration with enQase, prepares for “Harvest Now, Decrypt Later” (HNDL) attacks, where encrypted information is intercepted and stored for future decryption using the power of quantum computers. Rajesh Patil, CEO of enQase, said this positions La Sierra University as a leader among universities pursuing a fully implemented quantum-safe campus network. “We are beginning the journey toward becoming a quantum-safe university,” said Scott Martell, La Sierra’s chief information officer and vice president of information technology, as the university embarks on a three-year roadmap to establish a comprehensive quantum-secure technology environment. La Sierra University’s Quantum-Safe VPN Pilot Launch In June, 25 staff members will test a new quantum-safe virtual private network (VPN) designed to counter a specific attack vector known as “Harvest Now, Decrypt Later” (HNDL). This tactic involves intercepting and storing encrypted data with the intent to decrypt it at a future date when quantum computers can break current encryption standards like RSA and ECC. The university’s initiative extends beyond adopting new technology; it represents a three-year roadmap toward establishing a fully quantum-secure technology environment across the campus. Rajesh Patil, CEO of enQase, the quantum security technology provider collaborating with La Sierra, highlighted the university’s approach. “This is where most universities will be within the next three to five years, and La Sierra is helping lead that transition.” The deployment also aligns with a broader push from organizations like the National Institute of Standards and Technology (NIST), which has established timelines for transitioning to post-quantum cryptographic standards by 2025, describing the shift as “a mandate-driven migration from classical encryption to quantum-safe encryption,” according to Patil. The university’s
May 27, 2026 · via quantumzeitgeist.com
Poland’s Poznan University of Technology Unveils IQM Quantum Computer to Drive Research and Education IQM Radiance R1 is the first on-premises quantum computer for the PUT. The university aims to use the system to spearhead quantum education and research while boosting STEM in the country. This is the second operational quantum computer deployed in Poland by IQM. The university recognizes the significant long-term potential of integrating quantum computing, artificial intelligence, and high-performance computing (HPC), and intends to play a key role in shaping this transformation in Europe. Poland has a strong foundation in quantum technologies, particularly in STEM (Science, Technology, Engineering, and Mathematics) disciplines, built on high academic standards currently supported by significant strategic investments from the government. One of the key factors behind the university’s decision to select IQM’s offering was the company’s approach based on deployable, on-premises quantum systems, providing researchers, students, and engineers with direct access to a real quantum computer installed locally on campus. This creates significantly broader opportunities for hands-on experimentation, infrastructure integration, education and hardware-level research compared to cloud-only access models. “This is proof of our production quantum approach, where institutions such as Poznań University of Technology own their quantum computers, build internal expertise, and develop their own intellectual property,” said Jan Goetz, CEO and Co-founder of IQM Quantum Computers. “This deployment further strengthens Poland’s position as an important hub for quantum development in Central and Eastern Europe.” The acquisition of the system also aligns with the growing quantum technology ecosystem in Poznan. Starting in October 2026, the university will begin enrolling students in a new engineering program entitled “Quantum Technologies,” further strengthening its long-term strategy for education and talent development. In addition, the university will launch a master’s degree program focused on quantum computing and will provide access to the quantum computer for
May 27, 2026 · via newswire.co.kr
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May 27, 2026 · via youtube.com
Telia Finland and Finnish quantum software developer QMill have engineered and successfully demonstrated a quantum-enhanced message encryption protocol designed natively for mobile telecommunications infrastructure. Powered by QMill’s software layer, the implementation leverages either on-premises or cloud-accessible quantum computers to secure communication nodes. Once fully commercialized, the protocol is intended to protect data transmissions against cryptanalytic attacks launched from both classical and quantum computing systems. The defensive framework has been audited and demonstrated before the C5 Division of the Defense Command Finland to assess its long-term viability for state military communications. Technical Architecture & Specifications / Operational Implementation The technical milestone establishes a clear functional distinction between software-based quantum-assisted encryption and physical Quantum Key Distribution (QKD). While Telia’s previous cryptographic pilots under the Finnish National Quantum Communications Network (NaQCI.fi) project relied on QKD—which requires the transmission of delicate quantum states over specialized, dedicated optical fiber links—this new joint architecture operates directly over standard, existing mobile network channels. The software framework utilizes Noisy Intermediate-Scale Quantum (NISQ)-era algorithms engineered by QMill to run on near-term quantum processors. The encryption pipeline operates through a multi-layered security sequence: - Quantum-Resilient Key Ingestion: Employs quantum-enhanced computational algorithms to calculate and distribute dense cryptographic primitives across a standard point-to-point mobile link. - Hybrid Control Plane Integration: The protocol is engineered to function as a standalone cryptographic application or as a plug-and-play abstraction layer. This allows it to wrap around existing classical encryption standards, embedding an extra barrier of mathematical resistance without requiring hardware modifications to consumer or commercial mobile towers. Strategic Positioning & Ecosystem Integration The joint development project addresses an urgent requirement for telco operators to protect critical infrastructure and mission-critical enterprise data from state-sponsored cyber threats. Headquartered in Espoo, Finland, QMill focuses exclusively on developing practical industrial algorithms for the telecom, defense, energy, and transport
May 27, 2026 · via quantumcomputingreport.com
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May 27, 2026 · via youtube.com
Quantum computing uses the principles of quantum mechanics to process information and solve certain problems differently from classical computing. That doesn’t mean it will make every workload faster. It means that quantum systems may eventually find solutions for a narrow set of problems that have been too slow, expensive, or difficult for classical systems to handle efficiently. The distinction around acceleration matters. Business leaders often assume that more power means broader applicability. But quantum isn’t a new layer of general enterprise infrastructure that lifts all workloads at once. It’s a specialized capability that may create outsize value in selected domains while leaving most existing applications on classical systems. Why should leaders care now? Because quantum may reshape a few critical areas of risk and value faster than expected. While quantum’s full potential may take time to unfold, its cybersecurity implications are urgent today. How quantum computing works Classical computers store and process information in bits, which represent either 0 or 1, while quantum computing uses qubits. Using qubits allows quantum systems to explore certain computational possibilities in ways classical systems cannot easily match. At a high level, quantum computing matters because it can evaluate complex possibilities differently from classical computing, not because it simply adds more speed. That’s why quantum is most promising in problem classes such as optimization and simulation, where the number of possible combinations or interactions grows rapidly. That also explains why hybrid models matter. Quantum will augment, not replace, classical computing. In practice, enterprises should expect a mosaic: Classical systems will continue to handle most business workloads, while quantum may be applied where its specific strengths matter most. Bits vs. qubits A bit has one of two values. A qubit behaves according to quantum principles and can represent information in more complex ways. That difference is
May 27, 2026 · via bain.com
A broad review links nanomaterials, topological physics, and quantum computing to show how nanoscale engineering could help move quantum technologies from theoretical promise toward real-world applications. Review: From Nanotechnology to Topological Quantum Computers: An Interdisciplinary Leap. Image Credit: JLStock / Shutterstock A recent working paper published in the journal Cambridge Open Engage examines the convergence of nanotechnology, quantum physics, materials science, and advanced computing in the emerging era of quantum technologies. The review highlights how developments in topological materials, Majorana fermions, Weyl semimetals, and quantum simulations are informing possible routes toward fault-tolerant quantum computing and next-generation electronic systems. It also discusses the expanding role of nanomaterials in healthcare, energy storage, electronics, and environmental applications. Quantum Science Enters a New Technological Era Rapid advances in quantum science, nanotechnology, and materials engineering are accelerating the development of next-generation computing and multifunctional nanoscale systems. Conventional quantum computing platforms often face major limitations, such as decoherence, environmental instability, and poor scalability, that limit their practical implementation. To address these challenges, researchers are exploring topological quantum systems, Majorana fermions, Weyl semimetals, and low-dimensional nanomaterials that exhibit enhanced electronic stability, high carrier mobility, and potentially fault-tolerant quantum properties. This review systematically examines recent advances in topological materials, quantum architectures, and nanomaterial-based technologies that support the transition from theoretical quantum physics to practical engineering applications. It explains how Majorana-based topological qubits, semiconductor nanowires, and Weyl semimetals could improve quantum stability and computational reliability if key challenges in coherence, fabrication, and scalability are overcome. The review discusses the role of two-dimensional materials such as graphene, MoS2, and WS2 in enabling energy-efficient electronics, spintronic systems, flexible devices, and quantum optoelectronics. It also highlights the expanding applications of nanoparticles, carbon quantum dots, carbon nanotubes, and nanorods in nanomedicine, biosensing, imaging, targeted drug delivery, and water purification. Experimental Strategies and Computational
May 27, 2026 · via azonano.com
Terra Quantum AG has delivered its proprietary quantum-secure communications simulation platform to the U.S. Air Force for active operational testing. The software delivery marks the successful graduation of the technology through Small Business Innovation Research (SBIR) Phase I and Phase II programs conducted in partnership with the U.S. Department of the Air Force (DAF). The deployment transitions the company’s cybersecurity research out of localized laboratory settings into an active defense capability assessment suite, allowing military network architects to stress-test data lines against potential quantum-enabled “harvest now, decrypt later” interception strategies. Technical Architecture & Specifications / Operational Implementation The software-based emulation platform is designed to bridge the gap between newly standardized post-quantum cryptography (PQC) libraries and real-world tactical deployment. Rather than routing physical quantum network lines immediately, the platform models data transmissions, network behaviors, and key exchange processes under Denied, Degraded, Intermittent, and Low-bandwidth (DDIL) operational constraints. These simulated DDIL anomalies replicate the network degradation, broken infrastructure, and electronic warfare jamming scenarios typical of contested combat zones or forward-deployed Special Operations Forces (SOF) environments. By executing lattice-based key exchange mechanisms (such as Kyber) and hash-based authentication (such as SPHINCS+) inside this simulated environment, defense engineers can systematically evaluate latency overheads and packet-loss thresholds. The simulation suite optimizes the algorithms for low-resource environments, ensuring that encrypted channels retain their cyber-resilience under restricted bandwidth limits without overloading field-deployed hardware. Strategic Positioning & Ecosystem Integration The delivery establishes a repeatable validation blueprint for migrating defense communications networks toward a post-quantum security posture. Headquartered in St. Gallen, Switzerland, with core R&D operations in Germany, Terra Quantum delivers hybrid computing and cryptography systems under a standardized Quantum as a Service (QaaS) enterprise model. The multi-phase DAF collaboration aligns with an accelerating military mandate to protect critical infrastructure from cryptanalytically relevant quantum computers (CRQCs) capable of compromising
May 26, 2026 · via quantumcomputingreport.com
Armonk-based IBM and the U.S. Department of Commerce have signed a Letter of Intent to build a $2 billion American quantum chip foundry through the new company Anderon that IBM founded in Albany. The government will provide IBM with $1 billion from the CHIPS incentive, established by the CHIPS and Science Act that was intended to stimulate computer chip manufacturing in the U.S. IBM will contribute the other $1 billion in cash to the effort along with intellectual property, other assets and personnel. The initiative is described by IBM and the government as one of the most significant commitments by the U.S. government to date in quantum computing research and development with a goal of positioning the U.S. to manufacture most of the world’s quantum computing wafers. The plan is for Anderon to build and operate a state-of-the-art 300-millimeter quantum wafer foundry. Anderon would offer the quantum wafers it produces to multiple quantum technology vendors across the world. It is expected that the foundry would be built at the NY Creates’ Albany NanoTech Complex. Secretary of Commerce Howard Lutnick said, “These strategic quantum technology investments will build on our domestic industry, creating thousands of high-paying American jobs while advancing American quantum capabilities.” According to Arvind Krishna, chairman and CEO of IBM, “IBM has pioneered quantum computing for decades. Our work in silicon wafer fabrication has been a key to IBM’s success and will be critical to enable a broader quantum technology landscape that will reshape global innovation and economic competitiveness. With the support of the U.S. Department of Commerce, Anderon will be well-positioned to fuel America’s fast-growing quantum technology industry.” Quantum computing already is being used to solve complex problems that are challenging for even today’s supercomputers. It is expected to enable breakthroughs in materials science, chemistry, optimization, and cybersecurity,
May 26, 2026 · via westfaironline.com
The quantum computing race is heating up, but choosing a winner involves navigating significant financial losses. Will you favor Rigetti Computing (RGTI 5.28%) or the smaller Quantum Computing (QUBT 5.08%) today? Rigetti builds quantum devices using superconducting technology while Quantum Computing focuses on photonics as its approach. Both companies are early-stage players in a field that could redefine computing power. This comparison evaluates their financials and business models to see which is better positioned for your portfolio. The case for Rigetti Computing Rigetti Computing builds superconducting quantum processors and offers access through its own cloud platform. It serves national laboratories and research centers within the tech stocks landscape, with a heavy reliance on the U.S. government. Sales to government entities comprised roughly 90.2% of total revenue in its 2025 fiscal year, which adds a layer of risk to the business. In its 2025 fiscal year, revenue reached $7.1 million, representing a decrease of nearly 34.3% from the prior year. The company reported a net loss of $216.2 million for the period. The net margin reached approximately -3,050.4%, indicating that losses were significantly larger than the total revenue generated. As of its December 2025 balance sheet, the debt-to-equity ratio is zero. This indicates that the company has no total debt relative to its shareholder equity. The current ratio, which measures the ability to cover short-term liabilities with current assets, is very high at nearly 37.4x. Free cash flow, which is cash from operations minus capital expenditures, was negative $77.2 million. The case for Quantum Computing Quantum Computing develops integrated photonics and quantum optics products for high-performance computing. The company says its technologies serve diverse markets, and it has operations in Arizona, California, and Massachusetts. It operates a specialized foundry for integrated photonics to support its machine development. In its 2025 fiscal
May 26, 2026 · via fool.com
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May 26, 2026 · via fidelity.com
D-Wave’s Quantum Supremacy Result Stands Recent classical simulation work represents progress, but does not overturn D-Wave’s peer-reviewed demonstration of beyond-classical quantum simulation The claim that D-Wave’s achievement has been overturned is inaccurate and not supported by the scientific record. D-Wave welcomes advances in classical algorithms, including recent tensor-network work from researchers at the In the peer-reviewed Science paper, “Beyond-classical computation in quantum simulation,” D-Wave researchers and collaborators demonstrated beyond-classical computation in the quantum simulation of nonequilibrium magnetic spin dynamics using D-Wave annealing quantum computers. The work studied square, cubic, diamond and biclique topologies and showed that “D-Wave’s demonstration of beyond-classical computation continues to hold up under careful scientific scrutiny,” said Dr. The Flatiron Institute’s BP-TNS algorithm is a meaningful contribution to the classical state of the art, and it is effective in some regimes. But it is not effective across the full range of problem classes studied in D-Wave’s Science paper. In a In the arXiv paper “Evaluating Classical Simulations with a Quantum Processor," D-Wave researchers and collaborators further evaluated the limits of classical tensor-network simulations using a quantum processor as a reference. That work showed that BP-TNS fails for strongly coupled three-dimensional spin glasses on cubic and diamond lattices, and that loop-corrected BP-TNS is ineffective for higher-dimensional biclique problems. These are important quantum simulation regimes included in D-Wave’s original demonstration, not peripheral examples. “The BP-TNS algorithm is effective in some regimes and ineffective in others,” said Dr. D-Wave encourages continued work by the “We should all hold ourselves to a higher standard when communicating scientific results,” Baratz added. About D-Wave is a leader in the development and delivery of quantum computing systems, software, and services. It is the world’s first commercial supplier of quantum computers, and the first and only to offer dual-platform quantum computing products and services, spanning
May 26, 2026 · via markets.ft.com