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Congressman Langworthy Introduces American Quantum Competitiveness Act (H.R. 10163)

Congressman Langworthy Introduces American Quantum Competitiveness Act (H.R. 10163) U.S. Congressman Nick Langworthy (R-NY-23) has introduced H.R. 10163: The American Quantum Competitiveness Act, federal legislation establishing the U.S. Department of Commerce as the lead federal agency for commercial quantum technology, manufacturing, and supply chain resilience. Referred to the House Committee on Energy and Commerce, the bill directs the Secretary of Commerce to develop a national competitiveness strategy and protect domestic supply chains against reliance on covered foreign adversaries. [ American Quantum Competitiveness Act (H.R. 10163) Key Provisions ]Federal Authority & Lead RoleSupply Chain & Foreign AdversariesNational Strategy & Reporting• Designates Commerce Secretary as Principal Advisor• Defines Critical Components (Hardware/Software)• Triennial National Competitiveness Strategy• Oversees Commercial Scaling & Deployment• Restricts Dependence on Covered Nations (China)• Legislative & Policy Recommendations to Congress• Promotes Private Sector Capital Investment• Coordinates Sourcing via Trusted Allies (NATO/EU/OECD)• Public Industry & Academic Consultations Establishing Commerce Leadership and Trusted Supply Chains While fundamental quantum R&D is coordinated across federal science agencies, H.R. 10163 establishes a dedicated framework for the commercialization and manufacturing phase of quantum systems: Designation of Federal Lead: Mandates the Secretary of Commerce to act as the primary advisor to the President on policy governing commercial manufacturing, deployment, private investment, and scaling of quantum computing, sensing, and communications technologies. Trusted Supply Chain Framework: Directs Commerce to identify critical quantum inputs—including cryogenic refrigerators, photonics, lasers, and semiconductor substrates—and establish risk-reduction measures to eliminate single-point vulnerabilities from covered foreign

Sep 1, 2026

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Universal recovery in approximate quantum error correction

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Universal recovery in approximate quantum error correction

--> Quantum Physics arXiv:2608.28962 (quant-ph) [Submitted on 29 Aug 2026] Title:Universal recovery in approximate quantum error correction Authors:Dor Elimelech, Victor V. Albert, Alexander Barg View a PDF of the paper titled Universal recovery in approximate quantum error correction, by Dor Elimelech and Victor V. Albert and Alexander Barg View PDF HTML (experimental) Abstract:Universal recovery -- the existence of a single recovery map that corrects an entire family of error channels -- is a central feature of quantum error correction (QEC). In exact QEC, linearity guarantees that a code correcting a given error set also corrects every channel whose Kraus operators lie in its linear span, and that a single recovery map suffices for all such channels. Approximate quantum error correction (AQEC), which relaxes perfect recovery to recovery with controlled error, has traditionally lacked this structure. In a recent paper (arXiv:2607.22995), we developed a theory of approximate quantum error correction showing that a restricted form of linearity persists in the approximate setting, yielding uniform AQEC guarantees for the family of channels controlled by a given error set. In this work, we complete the picture by establishing the second half of universal recovery in the approximate setting: a single recovery map can simultaneously correct every channel controlled by a given error set. The error-set theory we proposed quantifies approximate correctability through two parameters: the environment-leakage distance, governing worst-case performance, and the Knill--Laflamme Hellinger distance, governing average-case performance. We show here that both quantities also control universal decoding. We further study the Petz map naturally associated with an error set as an explicit universal recovery, and obtain uniform average- and worst-case guarantees across the entire family of channels. Comments: Subjects: Quantum Physics (quant-ph); Information Theory (cs.IT) Cite as: arXi

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IonQ, NVIDIA, and qBraid Demonstrate 54% Error Reduction in Mid-Circuit Quantum Simulations

IonQ, NVIDIA, and qBraid Demonstrate 54% Error Reduction in Mid-Circuit Quantum Simulations Trapped-ion hardware provider IonQ (NYSE: IONQ), high-performance computing leader NVIDIA, and quantum software startup qBraid have published joint research demonstrating an application-native error mitigation framework for deep Trotterized quantum chemistry. Executed on an IonQ Barium-based development system (similar to the forthcoming IonQ Tempo architecture) alongside GPU-accelerated classical computing, the team achieved a 54% reduction in logical error rates compared to direct physical Trotter executions during a 6-qubit encoded simulation step. [ IonQ–NVIDIA–qBraid Error Mitigation Framework ]Algorithmic ArchitecturePhysical & Hybrid Hardware StackKey Benchmark Findings• Generalized Superfast Encoding (GSE)• Barium Trapped-Ion QPU (IonQ Tempo Class)• 54% Lower Logical Error Rate vs. Direct Trotter• Clifford Noise Reduction (CliNR) Protocol• NVIDIA GH200 Grace Hopper Superchip• 0% Fidelity Gain if Measurements Are Deferred• Active Mid-Circuit Measurement (MCM)• CUDA-Q & cuStabilizer Software Libraries• ML Model Selected Top Stabilizers from 57k Samples Arresting Cascading Noise via Active Mid-Circuit Intervention Simulating complex fermionic systems in chemistry and materials science requires Trotterization—a technique that breaks continuous time-evolution into deep sequences of quantum gates. In conventional NISQ executions, physical noise accumulates exponentially across successive Trotter steps, destroying the target signal (“the deep Trotter dilemma”). The joint research addresses this bottleneck by replacing long, non-local Jordan-Wigner strings with localized encodings and active error detection: Generalized Superfast Encoding (GSE): Maps fermionic operators to qubits using lower Pauli weights and local Majorana loop stabilizers, reducing circuit depth requirements and providing an inherent error-detecting structure. Clifford Noise Reduction (CliNR): Prepa

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MIT Quantum Initiative Launches Gordon and Betty Moore Foundation-Backed Postdoctoral Fellowship

MIT Quantum Initiative Launches Gordon and Betty Moore Foundation-Backed Postdoctoral Fellowship The MIT Quantum Initiative (QMIT) has launched a new postdoctoral fellowship program supported by a grant from the Gordon and Betty Moore Foundation. Designed to accelerate interdisciplinary quantum research and cultivate early-career scientific leadership, the program embeds its inaugural 2026 cohort across MIT research labs—including the Research Laboratory of Electronics (RLE), MIT Lincoln Laboratory, the MIT-Harvard Center for Ultracold Atoms, and the Departments of Physics and EECS. [ QMIT Postdoctoral Fellowship Program Overview ]Initiative Leadership & GrantInaugural 2026 Cohort ScaleKey Interdisciplinary Domains• Supported by Gordon and Betty Moore Foundation• 9 Selected Early-Career Fellows• Hardware-Aware Quantum Error Correction (QEC)• QMIT Faculty Director: Prof. Danna Freedman• Doctoral Representation: Yale, Harvard, Princeton, KAIST, Oxford• Neutral-Atom Tweezer Arrays & Cavity QED Networks• MIT Head of QMIT: VP for Research Ian Waitz• Next Application Cycle: Fall 2026 (for 2027–2028)• AI-Driven Topological Materials & Ultrafast Sensing Focus Areas of the Inaugural 2026 QMIT Fellows First established in December 2025 as a strategic Institute initiative, QMIT designed the fellowship to bridge foundational quantum physics with emerging technological applications. The inaugural nine fellows and their targeted research lines include: Kaavya Sahay (PhD Yale / Host: Hengyun Zhou): Focuses on low-overhead fault-tolerant quantum computing, hardware-aware quantum error correction (QEC) code design, customized decoders, and logical operations built for near-term physical architectures. Neng-Chun (Allen) Chiu (PhD Harvard / Host: Martin Zwierlein): Advances neutral-atom tweezer arrays for quantum simulation and explores laser-cooling and trapping techniques for ultracold molecular systems. Mehmet Tuna Uysal (PhD Princeton / Host: Vladan Vuletić): Investiga

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Quantum QC Ware and IonQ reach 4% accuracy in drug-design workflow

QC Ware and IonQ report achieving 0.5 kcal/mol accuracy in calculating electrostatic interaction energy, a result within the 1 kcal/mol threshold considered chemically accurate for enzyme modeling. The companies demonstrated this precision using a hybrid quantum-classical workflow on IonQ’s Forte hardware, modeling the heme active site of cytochrome P450nor, an enzyme critical to human drug metabolism, the company says. This approach delivered more than double the accuracy of standard classical methods, potentially improving drug candidate ranking and early detection of metabolic risks. QC Ware and IonQ Forte Achieve 4% Accuracy in P450nor Enzyme Modeling The companies paired GPU-accelerated classical pre-processing within QC Ware’s Promethium platform with quantum measurements performed on IonQ’s Forte trapped-ion quantum computer via Amazon Braket to calculate electrostatic interaction energy. This result was 0.5 kcal/mol. The modeling focused on cytochrome P450nor, a specific nitric oxide reductase, indicating a move beyond theoretical quantum computing toward practical application in a complex biological system. Promethium first built and preprocessed a 115-atom model of the enzyme’s active site, containing over 1,000 molecular orbitals, then isolated a critical region for quantum measurement. IonQ Forte’s all-to-all qubit connectivity proved crucial, allowing complex entangling gates to execute without the routing overhead common in systems with limited connectivity, according to the company. Dr. Kin-Joe Sham, Co-Founder and COO at QC Ware, said that running the same hybrid workflow on IonQ’s trapped-ion architecture, following their recent demonstration on other quantum hardware, shows that Promethium’s approach to combining classical and quantum computing is not tied to a single type of quantum hardware. Accurately predicting how tightly a drug candidate binds to its target, particularly at complex metal centers like the iron site in P450nor, is vital for ran

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Arqit, Es’hailSat, and AIEE secure live satellite link with quantum encryption

Es’hailSat’s Tier-4 certified Teleport facility in Doha hosted a demonstration of quantum-safe encryption integrated with existing satellite infrastructure, a collaboration between Arqit, Es’hailSat, and AIEE, the company says. The project successfully introduced quantum-safe cryptographic protection across operational networks without affecting existing systems, validating a practical path for strengthening communications resilience against emerging quantum threats. “What’s important about this project is that it proves a practical path to strengthening quantum-safe cryptographic resilience without requiring operators to rebuild existing infrastructure,” said Andy Leaver, CEO of Arqit. This demonstration, utilizing the Es’hail-1 satellite at the 25.5/26° East hotspot, establishes a foundation for secure satellite communications deployment and long-term protection of critical infrastructure. Arqit, Es’hailSat, and AIEE Demonstrate Live Quantum-Safe Satellite Link Satellite infrastructure supports some of the world’s most operationally sensitive environments, and a recent collaboration between Arqit Quantum Inc., Es’hailSat, and Advanced International Electronic Equipment Company (AIEE) demonstrated a live quantum-safe security link utilizing existing satellite communications infrastructure. This demonstration utilized the Es’hail-1 satellite positioned at the 25.5/26° East hotspot, a key broadcasting location for the Middle East and North Africa region. AIEE led the systems integration and interoperability testing, ensuring seamless operation across ground and network components. The demonstration proved that quantum-safe cryptographic protection could be introduced into live, satellite-connected networks without disrupting existing services or operational performance, a crucial detail for sectors demanding uninterrupted connectivity. Adam St Paul, Chief Technology Officer, AIEE, added that organizations do not need to replace existing systems to achieve stronger se

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QUTE.sk research confirms 83.3% cloning limit after 30 years of quantum study

Thirty years after establishing a fundamental limit in quantum copying, research from QUTE.sk confirms that 83.3 percent is the maximum fidelity achievable when cloning an unknown quantum state. In 1996, Vladimír Bužek and Mark Hillery published their findings in Physical Review A, introducing the Bužek-Hillery quantum cloning machine and defining a universal constraint applicable to all quantum states, the company says. “The optimal quantum cloner provides a precise way of understanding the boundary between what quantum mechanics forbids and what it permits,” the researchers wrote, revealing that perfect copying remains impossible, yet near-perfect replication is attainable. This result underpins the security of quantum cryptography and continues to shape modern quantum information science. This means that even with optimal technology, approximately 16.7 percent of the original quantum information is inevitably lost during the copying process, a fundamental constraint dictated by the laws of quantum mechanics. This confirmation arrives as the Slovak National Center for Quantum Technologies marks 30 years since the publication of the foundational work by Vladimír Bužek and Mark Hillery. In 1996, Bužek and Hillery published “Quantum copying: Beyond the no-cloning theorem” in Physical Review A, introducing a model that predicted the 5/6 fidelity limit for quantum state replication. This wasn’t merely a theoretical exercise; the researchers demonstrated that imperfect copying is possible, despite the well-known no-cloning theorem which prohibits the creation of identical quantum copies. The universality of this limit is particularly noteworthy, applying equally to all attempted quantum states, regardless of their complexity or characteristics. The implications of this work extend far beyond theoretical curiosity, becoming deeply interwoven with the development of quantum cryptography. The no-cloning principle, as demonstrated by the Bužek-Hillery machine, underpins the

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Top 10 Quantum Computing Companies in France

France’s quantum ecosystem spans neutral atoms, cat qubits, photonics, silicon spin processors, quantum networking and sensing. QuantumNews ranks the ten companies leading this diverse and increasingly commercial technology landscape.

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Sunlight generates entangled photon pairs for the first time

Researchers have achieved this milestone despite sunlight's low coherence and intensity, offering a sustainable alternative to lasers.

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Gujarat to Launch State Quantum Mission, Joining India’s Race to Build Regional Quantum Hubs

The Gujarat government plans to establish a dedicated Quantum Mission to accelerate research, skills and practical applications across the state. The initiative will complement India’s ₹6,003.65-crore National Quantum Mission, although Gujarat is yet to announce its budget, governance structure or implementation timeline.

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Top 10 Quantum Computing Companies in Japan

Japan is quietly building one of the world's most complete quantum ecosystems — spanning superconducting processors, cold neutral-atom hardware, cryogenic materials, quantum software, and pharma-grade quantum chemistry. According to QuantumNews' Japan country page, the ecosystem now counts 52 companies, 8 university research clusters, and 1 national research institution, concentrated heavily around Tokyo (35 companies), with smaller hubs in Osaka, Wako, Yokohama, Chigasaki, Kyoto, Hamamatsu, and Tsukuba. Here's a deep dive into the Top 10 Japanese quantum computing companies, ranked by their QuantumNews Quantum Score — a composite measure of hardware scale, gate fidelity/error-correction maturity, funding raised & investor quality, and commercial momentum & partnerships.

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India’s 1,000-Km Quantum-Secure Network Marks a Defining Moment for the National Quantum Mission

India’s National Quantum Mission has demonstrated a 1,000-kilometre quantum-secured communication network using indigenous technology developed by QNu Labs. The milestone takes India halfway towards its 2,000-kilometre inter-city QKD target and strengthens the country’s position in quantum communication and cybersecurity.

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Silicon-Spin Quantum Computers Move Closer to Integrated Chips

Researchers have integrated silicon spin qubits, cryogenic CMOS control and superconducting interconnects into a working quantum processing unit. The advance addresses one of the biggest barriers to scaling silicon quantum computers: controlling large numbers of qubits without overwhelming cryogenic systems with wiring.

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India National Quantum Mission

Explore India's ₹6,003 Crore quantum initiative: 4 thematic hubs, leading startups, and the latest developments in India's quantum ecosystem

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