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- Q-Day refers to the moment a quantum computer can break current encryption standards - There is no exact timeline for Q-day, but IonQ’s Niccolo De Masi predicted that it might happen by the end of the Trump administration - Government agencies and commercial companies have taken steps to prepare for the quantum future Organizations around the world are racing to build a quantum computer capable of solving problems too complex for classical computing, but the technology comes with a caveat: it can also render current cybersecurity mechanisms obsolete. As quantum computing capabilities continue to advance, cybersecurity leaders are increasingly warning about Q-day, the moment when a cryptographically relevant quantum computer becomes capable of breaking the security mechanisms currently protecting systems and data from cyberattacks. The Potomac Officers Club has convened the foremost experts from government, industry and academia to discuss the quantum threat at the 2026 Cyber Summit on May 21. The event’s Quantum Computing and Post Quantum Cryptography — Preparing for the Next Security Disruption panel will feature speakers from the University of Alabama, the Department of Education, DEVCOM Army Research Laboratory, Corelight and Everforth ECS Federal. Limited tickets are still available here! What Will Happen on Q-Day? Although the threat of quantum computing is serious, Q-day will not be disruptive, according to Palo Alto Networks. It will not cause the internet to collapse, the company added. Instead, what may happen is a loss of trust as Rivest-Shamir-Adleman crypto-system, also known as RSA, and elliptic-curve cryptography, or ECC — widely used encryption algorithms — become vulnerable. On Q-day, a cryptographically relevant quantum computer would be able to easily and quickly solve the math problems that keep encryption algorithms secure. Palo Alto Networks said public key infrastructures, certificate authorities and digital identities will need to be replaced immediately to
PRESS RELEASE Fujitsu and Science Tokyo launch joint research hub for quantum hardware advancement and talent development Establishing a collaborative research cluster for practical quantum education and quantum-HPC fusion Fujitsu Limited Institute of Science Tokyo Kawasaki and Tokyo, Japan, May 15, 2026 Fujitsu Limited and Institute of Science Tokyo (Science Tokyo) today announced the establishment of the "Fujitsu Quantum and HPC Infrastructure Collaborative Research Cluster" at Science Tokyo. This collaborative research cluster aims to systematically and practically develop human resources with quantum hardware technology in Japan. The initiative is part of Fujitsu's "Fujitsu Small Research Lab" program [1] and utilizes the Science Tokyo Collaborative Research Cluster System [2], with support from Open Innovation Office of the Center for Innovation Management [3]. The new cluster will operate as a collaborative research cluster, expanding beyond traditional High Performance Computing (HPC) to include the quantum hardware field. Through this collaborative research cluster, both parties will strengthen their technological capabilities by researching quantum hardware design, manufacturing, control, and evaluation technologies essential for realizing practical quantum computers. They will also foster talent to support next-generation quantum computing platforms and initiate efforts to pioneer new research areas that integrate HPC and quantum technologies. Background Quantum computers are expected to be a foundational technology that will transform society and industry across diverse fields such as materials development, drug discovery, finance, and manufacturing. However, realizing practical quantum computers requires implementing a large number of quantum bits that can be operated with high precision. Their development necessitates the continuous cultivation of highly specialized personnel capable of handling quantum hardware design, manufacturing, control, and evaluation. Furthermore, research and development in quantum hardware faces high barriers due to the need for a wide range of research infrastructure, including advanced facilities for quantum bit chips and manufacturing technology, large-scale cryocoolers for maintaining
German quantum computing firm eleQtron secures €57M The new capital will be used to build scalable production capacity, expand cloud-based access to eleQtron’s systems, and further develop its hardware platform. The company is also advancing its proprietary MAGIC technology. German deep-tech startup eleQtron, a developer of trapped-ion quantum computers, has successfully closed an EUR 57 million Series A funding round led by Schwarz Digits, the IT and digital division of Schwarz Group. The EIC Fund of the European Innovation Council (EIC) is also among the key investors, eleQtron said in a press release. Additional participation comes from existing investors such as Earlybird, as well as new investors including French VC firm Ankaa Ventures, laser equipment specialist Precitec, and development banks NRW.BANK (Düsseldorf) and IFB Innovationsstarter GmbH. The funding package also includes individual grants. The new capital will be used to build scalable production capacity, expand cloud-based access to eleQtron’s systems, and further advance development of its hardware platform, the company said. In parallel, eleQtron is advancing its proprietary MAGIC technology (Magnetic Gradient Induced Coupling), which enables highly precise control of trapped ions using miniaturized microwave technology. “Quantum computing is transitioning from a research-driven technology to an industrially usable infrastructure,” said Jan Henrik Leisse, CEO and Co-founder of eleQtron. “With this funding, we are accelerating that transition and building systems that will solve real-world industrial problems.” This investment strengthens eleQtron’s position as a provider of scalable quantum computing systems for industrial applications, the press release said. “Digital sovereignty is a top priority for us and our partners. Following our strategic decisions in the areas of cloud and artificial intelligence, the investment in eleQtron is a logical building block,” said Christian Müller, Co-CEO of Schwarz Digits. “We want to ensure that we remain independent in key technologies and actively shape forward-looking, secure
The financial sector is beginning to prepare for the post-quantum era. The usual discussion focuses on cybersecurity: when sufficiently powerful quantum computers arrive, widely used cryptographic systems may become vulnerable, and financial institutions will need to migrate to post-quantum standards. That is true, but it is not enough. Post-quantum finance is not only a technical cybersecurity problem. It is a business law problem. It concerns market integrity, institutional governance, investor protection, operational resilience and the legal duties of firms that depend on digital infrastructure to execute trades, clear transactions and preserve trust in financial markets. Modern financial markets are no longer organised around human decision-making alone. They rely on electronic trading platforms, automated execution, algorithmic strategies, clearing houses, digital records, encrypted communications and time-sensitive data flows. In this environment, cryptography is not a back-office technical detail. It is part of the legal and institutional architecture that makes markets possible. A trade is not merely an economic instruction. It is also a legally meaningful act that depends on authentication, integrity and reliable sequencing. Orders must be genuine. Records must be accurate. Settlement must be final. Market participants must trust that the infrastructure through which transactions are transmitted and recorded has not been compromised. If that infrastructure becomes vulnerable, the problem is not only technological. It affects the legal foundations of market confidence. This is why the transition to post-quantum cryptography should be understood as a governance obligation. Once a material technological vulnerability is known, boards, senior managers, exchanges, clearing houses and regulated financial firms cannot treat preparation as optional indefinitely. The issue becomes one of diligence, risk management and institutional responsibility. The challenge is especially acute in highly automated markets. High-frequency trading and algorithmic strategies already operate at speeds that make traditional supervision difficult. These systems submit, cancel and modify orders
A new approach to hypergraph partitioning, developed by Cameron Ibrahim at the United States Naval Academy and colleagues from Los Alamos National Laboratory and University of Delaware, treats the problem as requiring a probability distribution over potential solutions rather than a single optimal outcome. This distributional perspective, inspired by objectives like Fair Cut Cover, aligns with the natural output of the Quantum Approximate Optimisation Algorithm (QAOA). They have created QAOA-based solvers capable of natively representing these distributional solutions and introduced a new problem, the Greatest Expected Imbalance, to illustrate the formulation’s utility. Experiments on both real-world and synthetic hypergraphs reveal that low-depth multi-angle QAOA can surpass classical approximation algorithms based on semidefinite programming, suggesting a potential advantage for quantum algorithms in tackling optimisation problems demanding distributional solutions. Quantum optimisation enhances hypergraph partitioning performance sharply Low-depth multi-angle QAOA outperforms classical approximation algorithms, achieving a 7-10% improvement in objective function values on real-world and synthetic hypergraphs. This surpasses the limitations of previous methods reliant on semidefinite programming and hyperplane rounding, which struggled to find solutions with comparable quality, particularly for larger, more complex hypergraphs. The research introduces a new approach to hypergraph partitioning by framing it as a problem requiring a probability distribution over potential solutions, rather than a single optimal outcome, enabling the native representation of distributional solutions via quantum algorithms. Further analysis showed that low-depth multi-angle QAOA could outperform classical approximation algorithms based on semidefinite programming on proposed objectives, highlighting potential benefits for optimisation problems where the solution is a distribution rather than a single partition. For the Greatest Expected Imbalance problem, QAOA natively represented distributional solutions through quantum states, aligning with objectives such as Fair Cut Cover. These formulations connect balanced hypergraph partitioning, polarized community discovery, and distributional fairness within a unified quantum optimisation framework. Experiments utilising real-world and
Does China’s Jiuzhang 4.0 computer herald the age of quantum supremacy? New programmable photonic quantum computing prototype completed a complex calculation in microseconds, developers say Jiuzhang 4.0 completed a Gaussian boson sampling task in just 25 microseconds – a calculation they estimated would take the world’s most powerful supercomputer, El Capitan in the United States, more than 10^42 years to finish, according to the university in the eastern city of Hefei. A Gaussian boson sampling task is a quantum computing task that is computationally difficult for classical computers to handle. “No realistic classical computing resources, to our knowledge, can bring the MPS [matrix product state] algorithm anywhere near the accuracy achieved by our experiment,” the team said in a statement. Jiuzhang 4.0 operates with 1,024 squeezed-state inputs across an 8,176-mode interferometric network, and can manipulate and detect up to 3,050 photons – more than 10 times the scale achieved in previous experiments.
China builds fastest quantum computer Speed of Jiuzhang 4.0 prototype is a result of use and control of photons A team of Chinese scientists has developed the world's fastest quantum computer prototype, named Jiuzhang 4.0, capable of solving complex mathematical problems in less than the blink of an eye — tasks that even for the world's most powerful supercomputer would take longer than the age of the entire universe to crack. The findings, published in the journal Nature on Wednesday, push the quantum advantage in computing to an unprecedented level, demonstrating China's leading position in the field. A quantum computer operates on the laws of quantum mechanics. Its basic building blocks, called quantum bits or qubits, can exist in a superposition of both 0 and 1 simultaneously — unlike conventional bits, which are either 0 or 1. This allows quantum computers to explore many computational paths in parallel, providing exponential speedup for certain tasks, such as solving some mathematical problems and simulating quantum systems. Current mainstream quantum computing technological routes include superconducting, ion trap, photonic, and neutral atom systems. The Jiuzhang series, photonic quantum computers, encodes information in particles of light, and its speed depends on the ability to manipulate and control these photons. However, in the development of large-scale photonic quantum processors, inevitable photon loss — a major source of computational error — has long been a serious constraint. As the optical network grows larger and more complex, photons can easily get "lost" in the maze, significantly degrading computational power. To address the problem, the research team, led by the University of Science and Technology of China, developed a high-efficiency optical parametric oscillator light source and a spatiotemporally hybrid-coded interferometer, laying the groundwork for building a fault-tolerant photonic quantum processor. They integrated 1,024 high-efficiency squeezed-state optical fields into a
A newly developed quantum sensor has measured unimaginably small amounts of energy with record-breaking precision. A newly developed technique for measuring unimaginably small amounts of energy could help advance quantum computing and improve the search for dark matter. The method is sensitive enough to detect less than a trillionth of a billionth of a joule and may eventually allow scientists to count individual photons. Quantum mechanics operates at extremely small scales, so researchers are continually developing more precise tools to study particles such as photons, which carry light. Better measurements could improve quantum technologies and help scientists detect hypothetical dark matter particles known as axions. Researchers in Finland recently used an ultra-sensitive heat-based sensor called a calorimeter to measure energy levels below one zeptojoule, equal to one trillionth of a billionth of a joule. For comparison, a zeptojoule is about the amount of energy needed to move a red blood cell upward by one nanometer in Earth’s gravity. The research team was led by Academy Professor Mikko Möttönen at Aalto University in collaboration with quantum computing company IQM and the Technical Research Centre of Finland (VTT). Their findings were published in Nature Electronics. How the Sensor Works Measuring energy at this scale is extremely challenging. To perform the experiment, the researchers sent a microwave pulse into a sensor made from two types of metals: superconductors, which allow electrical signals to move freely, and standard conductors, which create resistance. ‘That combination of metals makes superconductivity such a fragile phenomenon that it weakens immediately if the temperature in the ultracold conductor rises even a little bit. This makes it such a sensitive setup,’ says Möttönen, who is also a founder of the quantum computer unicorn IQM. After filtering out background noise, the researchers confirmed that the device detected an electromagnetic pulse carrying
Fermi jumps as management touts increased interest in its data center project Fermi, a Texas-based energy and AI infrastructure company, reported a net loss of $189 million in Q1 as it heavily accelerated capital investments. During the conference call, co-President Anna Bofa offered some encouraging news, saying that the firm has “hosted multiple prospective tenants and strategic partners” at its Project Matador data-center site, sending shares sharply higher. Fermi funneled $441 million into property, plant, and equipment in Q1, bringing its gross balance to approximately $1.4 billion. Its big investment push coincided with the substantial expansion of Project Matador at its development site in Texas. The company officially secured over 2 gigawatts of power generation capacity across its owned and contracted assets. The company plans to have secured a tenant for this location and delivered power to it within the next 90 days. It’s poised to be a busy quarter for Fermi: another goal during this span includes hiring its next CEO. To continue supporting the build-out plans, Fermi closed $785 million in new equipment finance facilities this quarter, anchored by a $500 million facility from MUFG. Fermi also received a $156 million financing commitment secured with Yorkville.
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The School of Engineering and Applied Science has recognized six assistant professors for outstanding teaching and research. Each recipient of the 2026 junior faculty awards will receive $50,000 to support their work. E. Lawrence Keyes, Jr./Emerson Electric Co. Faculty Advancement Award Ryne Beeson Ryne Beeson, assistant professor of mechanical and aerospace engineering, focuses on applied and computational mathematics with an emphasis on data assimilation, optimal control, and dynamical systems. He applies these techniques to spacecraft trajectory control and optimization, space situational and domain awareness, and estimation and inverse methods for earth and space science. His recent contributions include the development of robust low-thrust trajectories for long-duration space missions, and the mitigation of lunar orbital debris. Michael Mueller, acting chair of mechanical and aerospace engineering, said Beeson has recently published “a seminal paper outlining existing policies, which are very few, and the policy needs to address the dynamics of the Earth-Moon system and ensure safe travel and lunar proximity operations.” Beeson has also made important contributions in teaching, including revitalizing the department’s capstone space systems design course. He is leading the engineering school’s new Space Engineering, Technology, and Policy Cluster of Excellence. Beeson earned a Ph.D. from the University of Illinois at Urbana-Champaign. He joined Princeton in 2021. Alex Lombardi An assistant professor of computer science, Alex Lombardi focuses on the theory and foundations of classical and quantum cryptography. Cryptography and codebreaking were foundational to computer science and predate the founding of the discipline. Lombardi’s work focuses on a relatively new frontier in cryptography — how quantum computers change cryptographic capabilities. Lombardi is developing approaches to post-quantum computing to ensure security, primarily by providing proofs of identity and validity, rather than encoding messages and data. Szymon Rusinkiewicz, chair of computer science, said Lombardi “offers truly unique, complementary, and invaluable expertise in
Xanadu Announces First Quarter 2026 Results The Company is on a Mission to Build Quantum Computers That Are Useful and Available to People Everywhere TORONTO, May 14, 2026 /PRNewswire/ - Xanadu Quantum Technologies Ltd. ("Xanadu" or the "Company") (NASDAQ: XNDU) (TSX: XNDU), a leading photonic quantum computing company, today announced financial results for the first quarter ended March 31, 2026. "I started Xanadu in 2016 with a whitepaper and a conviction that photonics was the right path to a scalable quantum computer. After a decade of research, peer-reviewed breakthroughs, and a public listing on Nasdaq and the TSX, I am more convinced of that than ever," said Dr. Christian Weedbrook, Founder and Chief Executive Officer of Xanadu. "We believe harnessing photons gives us a distinct and viable path to building a quantum data center capable of solving some of the world's most complex challenges — and going public gives us the platform to help get there. We are not measuring success in quarters. We are measuring it in the breakthroughs that pave the road towards utility scale quantum computing." "Our public listing marks an important milestone, and with it comes a new level of transparency into how we are building this company for the long term. We are in an investment phase — deliberately allocating capital toward the hardware, software, and talent required to realize the full potential of photonic quantum computing," said Michael Trzupek, Chief Financial Officer of Xanadu. "The completion of our business combination with Crane Harbor Acquisition Corp. in conjunction with the anticipated support from the Canadian and Ontario governments, which are currently being negotiated, gives us runway to execute on our roadmap. Our decisions and investments are all made with one goal in mind: to build quantum computers that are useful and available to people everywhere."
Investors Should Know: Investors have long discussed the potential benefits of quantum computers. But what about potential threats? Post-quantum cryptography is meant to protect data from a future when super-powerful quantum computers pose a real threat. And this concept is already moving from Quantum hacking might be a threat in the future. Some companies are already preparing SA Spotlight uses AI to summarize content published on Seeking Alpha. All summaries are reviewed by human editors prior to publication. Seeking Alpha's Disclaimer: SA Spotlight summaries are generated using Ask SA, Seeking Alpha's AI-powered search feature, based on content available on the site, and are subject to human review. Accuracy, completeness, or timeliness cannot be guaranteed. SA Spotlight summaries are intended for informational purposes only. Past performance is no guarantee of future results. Any views expressed may not reflect Seeking Alpha as a whole. Analysts are third party professional and individual investors who may not be licensed or certified. Seeking Alpha does not take account of your objectives or financial situation and does not offer any personalized investment advice. Seeking Alpha is not a licensed securities dealer, broker or US investment adviser or investment bank.
A fourth Canadian-founded quantum computing startup has secured a 10-figure valuation. Nord Quantique Inc. quietly raised US$30-million in March from fund-management giant Fidelity in a deal valuing the Sherbrooke, Que.-based technology developer at US$1.4-billion, said three sources familiar with the matter. Two sources said the investment could ultimately anchor a larger financing. The Globe and Mail is not identifying the sources, as they are not authorized to publicly discuss the matter. The company, led by physicist Julien Camirand Lemyre, follows D-Wave Quantum Inc., founded in B.C. but now based in Florida; Toronto-based Xanadu Quantum Technologies Inc.; and Vancouver’s Photonic Inc. in achieving billion-dollar-plus valuations. Photonic on Tuesday said it had closed a US$200-million financing, first announced in January, that valued it at US$2-billion. Xanadu went public in March by combining with a Nasdaq-listed special purpose acquisition company (SPAC); its valuation has topped US$10-billion at times since then. Canada is an early leader in a global race to develop quantum computers, which derive their power by tapping into the peculiar properties of subatomic particles. The machines are expected to some day solve tasks out of reach for the world’s most advanced computers, opening new applications in financial forecasting, machine learning and drug and material discovery. In depth: Canada's quantum leap No one has yet produced a machine that can do that. But 11 companies, including Nord Quantique, Xanadu and Photonic, have advanced to the second stage of a U.S. Defense Advanced Research Projects Agency (DARPA) competition challenging developers to show they can build a commercial-grade quantum computer by 2033. Those who complete the program could receive US$300-million from DARPA. The Canadian government has committed up to $23-million to each Canadian DARPA contestant – matching the U.S. funding they’ve already qualified for – and a fourth player, Anyon Systems Inc., which isn’t
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When he was a kid, Shaun Pexton would pore through popular science magazines like New Scientist and Scientific American to find the latest advances in astrophysics or biology. There was something about the vibrant layouts on glossy pages that evoked mystery. But by the time he was 12 or 13, one particular topic really started to fire his imagination: quantum mechanics. He wasn’t quite sure how it might be relevant to his life at the time, but there was something exciting about the complexities of this field — the idea of quantum “entanglement,” for instance, a phenomenon so critical to the emerging field of quantum computing — that seemed almost too impossible to grasp. “I would always try to find the page that had the word ‘quantum,’” remembers Pexton, a Yale senior from Silliman College. “The magazine would have these articles with almost magical diagrams that showed these cool processes. To me it really was magic because it was so distant from what I saw every day. It really pulled me in, in a very real sense.” For Pexton, who was born in Hong Kong, grew up in Singapore, but spent his high school years in the U.K., these mysteries became ever more engrossing, and to better understand them he expanded his reading to journal articles and textbooks. When it came time for college he turned his attention to Yale, a university steeped in quantum history, where pioneering researchers have imagined and built the infrastructure for the next generation of quantum technology — and a seedbed for tech industry talent. Once he got here, it was like being in a quantum candy store. And he’s made the most of every opportunity. A double major in Applied Physics and Computer Science, Pexton has taken graduate-level courses with several of the quantum
Though Archer Aviation (NYSE: ACHR | ACHR Price Prediction) at $6.52 a share screens neutrally, Rigetti Computing (NASDAQ: RGTI) at $18.42 and SoundHound AI (NASDAQ: SOUN) at $8.42 screen bullishly. Three of the most-watched speculative names on Reddit have rallied off April lows and now face key decision points. All three share a profile: pre-profit, high beta, and narrative-driven. Archer is racing toward FAA certification of its Midnight eVTOL air taxi. Rigetti builds superconducting quantum processors. SoundHound runs voice AI across automotive, restaurants, and enterprise. Each has rallied roughly 20% over the past month while the broader market consolidated, returning roughly 3%. Archer Aviation: Wait for the Catalysts Archer has the cleanest analyst sheet: two Strong Buys, four Buys, three Holds, and zero Sell ratings. Its $10.61 consensus analyst target implies meaningful upside as well. The Midnight aircraft has closed Phase 3 of FAA Type Certification, secured 100% FAA acceptance of all 797 Means of Compliance, and won the LA28 Olympic air taxi designation. The issue is what it costs to wait. Q1 net loss widened to $217.7 million, cash burn runs near $189 million per quarter, and the beta of 3.13 means any FAA delay hits harder than the index. Shares are down 41.6% over the past year. The thesis is binary on certification timing, and the risk/reward profile does not improve before the next clear milestone. Rigetti Computing: The Highest-Conviction Setup Rigetti is the cleanest quantum pure-play available. Q1 revenue nearly tripled to $4.40 million, the 108-qubit Cepheus-1 system went live across AWS Braket, Azure Quantum, and Rigetti’s own QCS, and median 99.8% two-qubit gate fidelity closes the gap with larger rivals. The balance sheet is strong at $569 million in cash and investments with no debt. Shares are up 86.7% over the past year. The bear case
NVision announced a $55 million Series B financing round as the company expands from quantum sensing into quantum computing, with the goal of accelerating the discovery and validation of new therapies. The funding round was anchored by Abbott and also included a $17 million venture loan from the European Investment Bank. Other investors participating in the round included Playground Global, Matterwave Ventures, and Entrée Capital. The new financing brings NVision’s total capital raised to $120 million. NVision’s quantum-enhanced sensing platform, POLARIS, leverages quantum technology to amplify MRI signals from sugar-based imaging agents, enabling real-time metabolic measurements with standard MRI systems. The platform is designed to help researchers assess treatment response within hours or days based on disease biology rather than waiting months for conventional imaging methods to reveal morphological changes. The company is now extending the molecular quantum approach behind POLARIS into quantum computing. During the development of its MRI signal enhancement technology, NVision discovered a new class of organic molecule-based qubits. The company believes these qubits can support a new quantum-driven approach to drug development by enabling the design of more effective drug candidates while POLARIS rapidly validates them in biological environments. NVision’s vision is to create a unified “compute and validate” system that combines quantum computing for drug design with quantum sensing for real-world therapeutic validation. POLARIS systems are already being installed at leading cancer centers around the world, with deployments expected at approximately 20 centers across the U.S., Europe, and Asia by the end of the year. Sites include Memorial Sloan Kettering Cancer Center, University of Cambridge, and Technical University of Munich. The company also introduced its quantum computing platform known as Photonic Integrated Quantum Circuits, or PIQC, pronounced “Pixie.” The platform uses single photon-emitting organic molecules integrated as thin organic layers onto photonic chips, creating a
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