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Quantum Networking & Communications: Quantum Internet & Entanglement

Quantum internet news: quantum communications, quantum repeaters, entanglement distribution, quantum teleportation. Network architecture updates.

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Quantum networking connects distant quantum processors via entanglement distribution, enabling distributed quantum computing, provably secure communications, and quantum sensor arrays.

India's Quantum Networking and Communications Initiatives

India's National Quantum Mission includes quantum communication as a major vertical with specific deliverables: satellite-based secure quantum communications between ground stations over 2000 kilometers; long-distance secure quantum communications with other countries; inter-city quantum key distribution over 2000 km; and multi-node quantum networks with quantum memories.

The IITM C-DOT Samgnya Technologies Foundation at IIT Madras serves as the Thematic Hub on Quantum Communication. Established in partnership with the Centre for Development of Telematics (C-DOT), the hub focuses on quantum cryptography, post-quantum security, QKD networks, quantum memory, quantum repeaters, and satellite-enabled quantum communication.

ISRO plans satellite-based quantum communication missions to demonstrate space-based quantum links. The Society for Applied Microwave Electronics Engineering & Research (SAMEER) in Mumbai develops indigenous QKD systems. The Centre for Development of Telematics (C-DOT) integrates quantum communication with national telecom infrastructure.

The NQM targets operational quantum communication networks connecting major Indian cities, with potential applications in government secure communications, financial transaction security, and defense applications.

Researchers Bound Cryptographic Leakage in GKP State Aggregationquantum-computing

Researchers Bound Cryptographic Leakage in GKP State Aggregation

Nilesh Vyas, Airbus Central R&T, and colleagues have created an active, measurement-based framework for aggregating multiple Gottesman-Kitaev-Preskill (GKP) states, overcoming limitations of passive linear optics that compressed the phase-space lattice and caused quantum data loss. The method preserves the code space geometry up to correctable deformations, achieving a lattice spacing of √π, an improvement on the √2π resulting from previous passive approaches. A new technique combines quantum information across a network, resolving a key limitation in continuous-variable quantum computing systems. The team addressed issues stemming from signal loss and distortion when employing conventional optical methods, enabling more dependable and geometrically-precise aggregation of quantum states. This provides a theoretical basis for constructing secure and strong quantum networks utilising this approach, allowing for the preservation of the structure of quantum data during aggregation. The researchers R&T developed a new method for combining quantum information across a network, addressing a key obstacle in continuous-variable quantum computing. They tackled the problem of signal loss and distortion that occurs when using traditional optical techniques to merge quantum states, enabling more reliable and geometrically-accurate aggregation. This is achieved using Gottesman-Kitaev-Preskill (GKP) coding, which encodes quantum information using the position and momentum of light, similar to how a vinyl record stores information in its grooves. The new framework preserves the structure of quantum data during aggregation, allowing for the construction of secure and strong quantum networks, though scaling this approach requires careful consideration of error accumulation during merging. Optimised quantum aggregation via active error correction and GKP states Airbus Central R&T personnel achieved a lattice spacing of √π in aggregated quantum states, a substantial improve

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The International Workshop on Quantum Computing, Privacy and Securityquantum-computing

The International Workshop on Quantum Computing, Privacy and Security

The International Workshop on Quantum Computing, Privacy and Security Acronym: IWQPS2026Dates: Tuesday, September 22, 2026 to Friday, September 25, 2026Web page: The International Workshop on Quantum Computing, Privacy and Security (IWQPS2026)Registration deadline: Tuesday, September 1, 2026Submission deadline: Tuesday, August 25, 2026Tags: quantum machine learningquantum computingcybersecurityQuantum computing is expected to significantly reshape the landscape of secure computing and software and network infrastructures. As quantum technologies continue to evolve, traditional security approaches and software design paradigms face new challenges, requiring the development of quantum-aware architectures and resilient software systems. This workshop aims to explore the intersection of quantum computing with privacy and security. It will provide a forum for researchers and practitioners to discuss how emerging quantum technologies, including quantum algorithms, quantum communication protocols, and quantum machine learning, can influence the design and deployment of software systems. Topics of interest include full and hybrid classical–quantum software architectures, quantum-aware security mechanisms and programming models for quantum-enabled platforms. The workshop will also examine how quantum technologies can be integrated into modern computing environments such as cloud infrastructures, distributed systems, and large-scale networked platforms. By bringing together experts from quantum computing, software engineering, artificial intelligence, data science and cybersecurity, the workshop aims to foster interdisciplinary collaboration and identify emerging research challenges and opportunities for building secure, scalable, and intelligent distributed software architectures in the quantum era. We invite submissions describing original research, position papers, or case studies related to the intersection of quantum computing privacy and se

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Heuristic Lookahead Distillation Protocol Searchquantum-computing

Heuristic Lookahead Distillation Protocol Search

--> Quantum Physics arXiv:2608.13644 (quant-ph) [Submitted on 13 Aug 2026] Title:Heuristic Lookahead Distillation Protocol Search Authors:Matthew Barber, Stefano Pirandola View a PDF of the paper titled Heuristic Lookahead Distillation Protocol Search, by Matthew Barber and 1 other authors View PDF HTML (experimental) Abstract:Bipartite qubit entanglement distillation is the process of converting noisy ebits into pure ebits using only local operations and classical communication. This is a core operation for quantum repeaters, enabling such crucial tasks as long-distance quantum communication and distributed quantum computing. In this work, we introduce a method for searching for entanglement distillation protocols and, using this technique, distil qubit Werner states at a higher rate than could be achieved using previously discovered protocols. In particular, we demonstrate the advantage of our new distillation strategy by improving the best-known lower bound for the two-way-assisted quantum capacity of the qubit depolarising channel across a wide range of channel parameters, making progress in one of the long-standing problems of quantum information theory. Comments: Subjects: Quantum Physics (quant-ph); Other Condensed Matter (cond-mat.other); Mathematical Physics (math-ph); Optics (physics.optics) Cite as: arXiv:2608.13644 [quant-ph]   (or arXiv:2608.13644v1 [quant-ph] for this version)   https://doi.org/10.48550/arXiv.2608.13644 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Stefano Pirandola [view email] [v1] Thu, 13 Aug 2026 18:00:02 UTC (368 KB) Full-text links: Access Paper: View a PDF of the paper titled Heuristic Lookahead Distillation Protocol Search, by Matthew Barber and 1 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph < prev   |   next > new | recent | 2026-08 Change to browse by: cond-mat cond-mat.other math math-ph

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The Company Lab Launches CO.LAB Q Commercialization Studio to Scale Quantum Startupsquantum-computing

The Company Lab Launches CO.LAB Q Commercialization Studio to Scale Quantum Startups

The Company Lab Launches CO.LAB Q Commercialization Studio to Scale Quantum Startups Chattanooga-based startup accelerator The Company Lab (CO.LAB) has launched CO.LAB Q, a 12-month quantum commercialization studio designed to translate early-stage quantum research into market-ready companies. Set to begin its inaugural cohort in November 2026, the program offers individualized commercialization pathways, pilot access, and technical infrastructure across quantum computing, networking, cybersecurity, sensing, and control hardware. [ CO.LAB Q Commercialization Studio Architecture ] │ ┌────────────────────────────────────────┼────────────────────────────────────────┐ ▼ ▼ ▼ Founding Technology & Utility Partners Academic & Defense Partners Quantum Infrastructure Access • Quantinuum (Founding Compute Partner). • UTC (Founding Academic Partner). • EPB Quantum Network. • Middle Tennessee Electric (Utility). • Davidson Technologies (Defense). • Oak Ridge National Laboratory (ORNL). • EPB Quantum (Network Partner). • Defense Pilot & SBIR/STTR Pathways. • UTC Quantum Center Facilities. The studio provides customized, milestone-driven support structured around foundational ecosystem partnerships: Quantum Computing & Cloud Access: As Founding Compute Partner, Quantinuum provides participating startups with direct access to its trapped-ion quantum processors, the Nexus cloud platform, the Guppy programming language, and technical simulation tools. Defense & National Security Track: Founding Defense Track Sponsor Davidson Technologies mentors startups on Department of Defense (DoD) mission needs, offering access to its quantum laboratory, cybersecurity frameworks, and pilot pathways through DIU and SBIR/STTR programs. Academic & Facility Integration: Founding Academic Partner University of Tennessee at Chattanooga (UTC) connects startups with quantum faculty, student researchers, and specialized laboratory facilities. Grid & Utility Testing: Founding U

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Hirata & Tsukada Build Language for Quantum-Controlled Channelsquantum-computing

Hirata & Tsukada Build Language for Quantum-Controlled Channels

A new theoretical study proposes a quantum programming language capable of expressing one of quantum information science’s most powerful control mechanisms: the quantum SWITCH. Kengo Hirata of Kyoto University and Takeshi Tsukada of Chiba University have developed a programming framework that overcomes a fundamental obstacle in controlling quantum programs with qubits. By introducing a novel linear type system, the researchers show that quantum programs involving general quantum channels can be described in a mathematically consistent way while naturally supporting the quantum SWITCH. Quantum computers derive their power from the ability of quantum data to exist in superposition, allowing a qubit to represent multiple states simultaneously. This naturally raises a deeper question: if quantum data can exist in superposition, can entire quantum programs also be placed into superposition? The quantum SWITCH, which allows the order of two quantum operations to depend on a quantum control state, has emerged as one of the best-known examples of quantum-controlled computation and has attracted considerable attention in quantum information theory. A common method for controlling quantum programs is through controlled operations. In this approach, a control qubit determines whether an operation F is applied when the qubit is in the state |1⟩ or whether the identity operation is performed when the qubit is in the state |0⟩. While this construction works well for unitary operations, Hirata and Tsukada show that it is not well-defined for general quantum channels, which include measurements, noise, and other non-unitary processes that occur in realistic quantum systems. The researchers identify the source of this limitation as the way quantum conditional branching handles measurements. Specifically, the measurements performed in the then and else branches of a conditional statement may not correspond to one another, preventing the overall program from representing a valid quant

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Columbia hosted a workshop to connect quantum research with industryquantum-computing

Columbia hosted a workshop to connect quantum research with industry

Columbia University hosted its first Quantum Industry and Investor Workshop on August 10, indicating a new effort to translate a century of quantum research into practical applications. The event brought together industry leaders and 37 Columbia faculty members comprising the Columbia Quantum Initiative, experts in areas from quantum materials to networking. “These discussions are critical, especially now,” said Sharon Sputz, associate vice president of research initiatives and development at Columbia Research, emphasizing the need to combine university innovation with industry to advance quantum technologies. Participants explored collaborations focused on quantum networking, security, and sensing, and plans for continued conversations are already underway. Columbia Quantum Initiative Showcases Research & Industry Alignment Columbia University’s Quantum Initiative comprises 37 faculty members, a broad internal base of expertise spanning quantum materials, photonics, computing, networking, and sensing. The event was not simply a presentation of findings; it signaled a proactive effort to forge partnerships crucial for advancing the field, according to university leaders. Attendees explored potential collaborations focused on quantum networking, security protocols, and advanced sensing technologies, areas where current classical systems are reaching their limits. Roundtable discussions centered on practical implementation, including shared laboratory models and streamlined technology transfer processes, reflecting a focus on overcoming hurdles to market entry. Participants also voiced interest in post-quantum cryptography, a critical area for safeguarding data against future quantum-powered attacks. “This workshop was a phenomenal opportunity to receive input from industry leaders that will help shape Columbia’s quantum research projects, inform our quantum education priorities, and expedite the development and adoption of new quantum technologies for real-world

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Tamil Nadu Secures MoUs with Four Quantum Computing Ventures at Vetri Conclavequantum-computing

Tamil Nadu Secures MoUs with Four Quantum Computing Ventures at Vetri Conclave

Tamil Nadu Secures MoUs with Four Quantum Computing Ventures at Vetri Conclave The Government of Tamil Nadu has signed Memoranda of Understanding (MoUs) with four quantum technology ventures during the Vetri Tamil Nadu Investment Conclave 2026 in Chennai. The strategic agreements establish operational bases, R&D centers, and control system manufacturing facilities across the state, strengthening India’s regional quantum hardware and software ecosystem. [ Tamil Nadu Quantum Technology Ecosystem Expansion ] │ ┌─────────────────────────────────────┼─────────────────────────────────────┐ ▼ ▼ ▼ Quantum Integrated Machines Quntrolsphere TriQuanta Labs • Chengalpet Operational Base. • Chennai Hardware Facility. • Chennai R&D & Engineering Hub. • Superconducting QPU Development. • Control Systems & Electronics. • Hybrid Quantum System Integration. • Collaboration with IGCAR. • Quantum Communication Hardware. • Regional R&D Expansion. Key projects and operational frameworks established under the agreements include: Superconducting Quantum Hardware: Quantum Integrated Machines will establish a major operational hub in Chengalpet, collaborating with the Indira Gandhi Centre for Atomic Research (IGCAR) to advance superconducting quantum processing unit (QPU) hardware and research. Control Electronics & Instrumentation: Chennai-based Quntrolsphere will design and manufacture precision control hardware, cryogenic electronics, and signal-processing systems for quantum computing and quantum communication architectures. Hybrid Systems & R&D Expansion: TriQuanta Labs (expanding from its bases in Hyderabad and Amaravathi) will set up an engineering and R&D hub in Chennai focused on hybrid quantum-classical software stacks and hardware orchestration. Electronics & Semiconductor Integration: The quantum initiatives align with parallel state investments in advanced electronics—including a ₹250 crore ($30M USD) chip-design facility by Aheesa Digital

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What is Quantum Teleportation? How Quantum States Transfer Across Distancequantum-computing

What is Quantum Teleportation? How Quantum States Transfer Across Distance

Insider Brief Mention quantum teleportation in conversation and most people picture humans dissolving in one place and appearing somewhere else. Something from Star Trek, maybe with a dramatic sound effect. That is not what it does. What quantum teleportation transfers is the quantum state of a particle, specifically its spin, polarization, or energy level, to […]

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Columbia’s quantum research secured about $62 million in grantsquantum-computing

Columbia’s quantum research secured about $62 million in grants

Columbia researchers have trapped over 1000 atoms using optical tweezers and metasurfaces, a record number that allows them to potentially capture hundreds of thousands more for advancements in neutral-atom quantum computing. This achievement is part of a year of substantial progress detailed in the Columbia Quantum Initiative Impact Report, which highlights $62 million in active research grants currently funding 31 projects. With 266 research papers published, half authored as senior contributions, Columbia demonstrates sustained investment and leadership in quantum science. A research panel stated during a visit to Capitol Hill that universities will be critical to American leadership in this rapidly advancing field. $62 million Secured for Quantum Research & Development Columbia’s quantum research secured about $62 million in active research grants during the last academic year, demonstrating sustained financial investment in the rapidly evolving field. These 31 grants currently fund a broad spectrum of projects, enabling continued exploration of quantum phenomena and technologies across multiple disciplines within the university. The funding supports 37 core faculty members whose expertise spans quantum physics, chemistry, photonics, materials science, and quantum computing, fostering a collaborative environment for innovation. This achievement positions the team to potentially scale up these arrays considerably, with the capability of capturing hundreds of thousands more atoms in future experiments. Beyond expanding computational capacity, the research also contributed to six new patents filed and the launch of three start-up companies spun out from Columbia’s quantum research programs; this entrepreneurial activity underscores the initiative’s commitment to translating fundamental discoveries into practical applications. Columbia’s impact extends beyond its campus; the university is actively connected to the New York Quantum Network, which will leverage en

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Topological State-Aware Simulation Framework for Inter-Satellite Twin-Field QKD Networksquantum-computing

Topological State-Aware Simulation Framework for Inter-Satellite Twin-Field QKD Networks

--> Quantum Physics arXiv:2608.12659 (quant-ph) [Submitted on 12 Aug 2026] Title:Topological State-Aware Simulation Framework for Inter-Satellite Twin-Field QKD Networks Authors:Sergio Vázquez-Pozo, Juan Manuel Murillo View a PDF of the paper titled Topological State-Aware Simulation Framework for Inter-Satellite Twin-Field QKD Networks, by Sergio V\'azquez-Pozo and 1 other authors View PDF HTML (experimental) Abstract:Inter-satellite links (ISLs) are the mandatory backbone for global quantum networks. While Twin-Field Quantum Key Distribution (TF-QKD) successfully surpasses linear rate-loss bounds, its extreme phase sensitivity makes it highly vulnerable to dynamic, non-IID (Independent and Identically Distributed) orbital environments. In composable finite-key analyses governed by the Generalized Entropy Accumulation Theorem (GEAT), traditional adaptive post-selection heuristics either violate strict independence conditions or incur massive second-order penalties that collapse the secret key rate. To overcome this, we introduce a reference-only topological post-selection oracle. By modeling the constellation as a Cellular Sheaf and applying Topological Data Analysis (TDA), our protocol derives a public acceptance event ($\Omega$) exclusively from classical beacon telemetry. To rigorously validate this mechanism, we develop a modular simulation framework equipped with stochastic noise injection and an explicit GEAT security ledger. Simulations across 2,000-5,000 km ISL separations compare the same Hodge-Koopman gate with TDA disabled and enabled. At 2,000 km, the median conditional candidate rates are $2.14 \times 10^{-6}$ and $5.87 \times 10^{-7}$ bit per emitted pulse, respectively; both configurations return zero at 3,000-5,000 km. TDA is active in all 4,788 evaluated windows, but does not extend the positive-candidate range in this scenario. These exported rates are conditional numerical candidates: the full protocol-level composable-security proof remains inco

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A Finite-Window Recovery Hierarchy for Local Quantum Memoryquantum-computing

A Finite-Window Recovery Hierarchy for Local Quantum Memory

--> Quantum Physics arXiv:2608.12803 (quant-ph) [Submitted on 13 Aug 2026] Title:A Finite-Window Recovery Hierarchy for Local Quantum Memory Authors:Zheng An, Dongyang Cao, Jiangyu Cui View a PDF of the paper titled A Finite-Window Recovery Hierarchy for Local Quantum Memory, by Zheng An and 2 other authors View PDF HTML (experimental) Abstract:When quantum information initially stored in a local qubit disappears, it need not be lost: it may have moved into nearby degrees of freedom or become inaccessible to shallow local control. We introduce finite-window recoverability as an operational channel benchmark that separates these possibilities. It compares optimal recovery from the target site, recovery by a bounded-depth decoder on a finite window, and the unrestricted optimum for that window. Its operational component, local variational recovery, uses local state preparation, window-local control, and target-qubit Pauli readout to certify recoverable memory beyond the target and quantify how much of the same-window advantage is accessible to shallow control. In a disordered kicked-Ising Floquet chain, a depth-6 decoder on a five-site window realizes $Q^{\mathrm{opt}}_0<Q^{\mathrm{shallow}}_2<Q^{\mathrm{opt}}_2$ across the crossover regime, with positive certified gain for most disorder realizations and substantial shallow-accessibility fractions. The signal differs from target-site persistence and reconstructed coherent-information increments. Positive radius-2 gain also persists when the task is embedded in longer open chains using an independent tensor-network backend. Guided by this hierarchy, we test a carrier-deletion task in which the original target register is reset after the dynamics. A depth-8 decoder repairs the input from a radius-3 surrounding halo with held-out median $F_{\mathrm{avg}}=0.758$, above the single-qubit classical benchmark $2/3$, and outperforms optimal one-, two-, and three-site halo-subwindow counterfactuals. These results establis

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DARPA Awards Qunnect Contract to Advance Carina Polarization Compensation for Quantum Network Reliabilityquantum-computing

DARPA Awards Qunnect Contract to Advance Carina Polarization Compensation for Quantum Network Reliability

DARPA has awarded Qunnect a contract to advance the next-generation polarization compensation nodule in its Carina quantum entanglement distribution system. Carina already anchors quantum-network deployments in New York, Bozeman, Berlin, and Albuquerque. The funding targets real-time correction of fiber-induced polarization drift that can degrade quantum signals on commercial infrastructure. The post DARPA Awards Qunnect Contract to Advance Carina Polarization Compensation for Quantum Network Reliability appeared first on The Qubit Report.

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Petz–Rényi Channel Information Is Superadditive for Every α Between 1/2 and 1quantum-computing

Petz–Rényi Channel Information Is Superadditive for Every α Between 1/2 and 1

A new theoretical study has revealed that using multiple copies of a quantum communication channel in a correlated way can improve transmission reliability without increasing the maximum communication rate. Hao-Chung Cheng of the National Taiwan University and Mario Berta of the RWTH Aachen University prove that the Petz–Rényi channel information is strictly superadditive for every Rényi parameter α between 1/2 and 1, demonstrating that entanglement-assisted quantum communication can become more reliable through joint channel use even though its capacity remains fundamentally additive. Entanglement-assisted communication allows a sender and receiver to share entanglement before transmitting information through a quantum channel. While previous results established that joint encodings across multiple channel uses cannot increase the ultimate communication rate, the new work shows that they can enhance the probability of successful communication by improving the random-coding error exponent, a measure of how rapidly transmission errors decrease as larger codes are used. The researchers establish this phenomenon analytically for measurement channels, a class of entanglement-breaking channels whose unassisted communication capacity is already known to be additive. Despite their inability to preserve quantum entanglement, these channels still exhibit a genuine multi-copy reliability enhancement under entanglement-assisted communication. Remarkably, the improvement does not require entanglement between the transmitted channel inputs. Instead, the superadditivity is demonstrated using a separable, classically correlated two-copy input state, showing that classical correlations alone are sufficient to produce the reliability gain. This finding highlights an unexpected role for correlations beyond entanglement in quantum communication protocols. Rather than increasing the amount of information that can ultimately be transmitted, the work shows that correlated channel use mak

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WarpSpeed Says its AI cuts quantum encryption cracking cost sharplyquantum-computing

WarpSpeed Says its AI cuts quantum encryption cracking cost sharply

WarpSpeed’s artificial intelligence has designed a quantum circuit that cracks a standard cryptographic challenge with significantly improved efficiency, the company says. The system achieved a 2.5 times more efficient circuit than Google’s in cracking the ECDSA challenge, a benchmark used to assess the security of digital signatures underpinning cryptocurrencies like Bitcoin and Ethereum, according to WarpSpeed. This improvement exceeds the median improvement on the benchmark over the last month by about two and a half orders of magnitude; according to WarpSpeed, its circuit consists of only 993,181 Toffoli gates and 1,205 qubits, certified by a zero-knowledge proof. Beyond circuit design, the company’s agents also found gaps combining cryptography, performance engineering, and software security within the benchmark’s verification processes, the firm reports. WarpSpeed AI Achieves 2.5x Efficiency in ECDSA Cracking WarpSpeed’s artificial intelligence delivered a quantum circuit that reduces the computational cost of cracking the Elliptic Curve Digital Signature Algorithm (ECDSA) by a substantial margin, achieving a 2.5 times more efficient circuit than Google Quantum AI’s previously published designs, WarpSpeed claims. This leap in performance was demonstrated on the publicly available ecdsa.fail benchmark, which Eigen Labs created from the Google paper. The system achieved these results through self-improvement, by the company’s account. The core of the challenge revolves around efficiently calculating point addition on elliptic curves, a fundamental operation within the ECDSA cryptographic scheme. Shor’s algorithm, the quantum method used to break this encryption, relies heavily on the cost of this single operation; therefore, optimizing point addition directly impacts the overall attack complexity. WarpSpeed’s circuit achieves a spacetime score of 1.20 × 10⁹, utilizing 993,181 Toffoli gates and 1,205 qubits, a figure certified by a zero-knowledge proof released a

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DARPA Awards Contract to Qunnect to Advance Real-Time Polarization Compensation for Quantum Networksquantum-computing

DARPA Awards Contract to Qunnect to Advance Real-Time Polarization Compensation for Quantum Networks

DARPA Awards Contract to Qunnect to Advance Real-Time Polarization Compensation for Quantum Networks The Defense Advanced Research Projects Agency (DARPA) has awarded a research contract to quantum networking hardware startup Qunnect to enhance the signal stability and resilience of entanglement-based telecom fiber networks. Associated with DARPA’s Quantum Augmented Networks (QuANET) program and Small Business Innovation Research (SBIR) initiatives, the contract provides funding to advance the next generation of Qunnect’s automated polarization compensation module, a core component within its flagship Carina™ entanglement distribution system. [ Qunnect Carina™ Polarization Stabilization Pipeline ] │ ┌──────────────────────────────────────┴──────────────────────────────────────┐ ▼ ▼ Field Telecom Fiber Network Environment Carina Active Noise Cancellation • Environmental Temp & Phase Fluctuations. • Real-Time Polarization Drift Analysis. • Signal Fidelity Degradation in Transit. • Active Counter-Phase Correction Modules. • Deployed Metro Fiber Networks (NYC, Berlin, ABQ). • High-Fidelity Entanglement Preservation. In real-world telecommunications infrastructure, ambient temperature shifts, mechanical stress, and physical vibrations cause rapid polarization drift in optical fiber, corrupting single-photon quantum states in transit. Qunnect’s Carina platform acts like active noise-canceling headphones for quantum signals, executing continuous real-time analysis and automated counter-phase shifts to preserve quantum entanglement fidelity across deployed metropolitan fiber without requiring dedicated cooling or laboratory environments. Operating on commercial fiber links in New York City, Berlin (with Deutsche Telekom), Albuquerque, and Bozeman (with Montana State University), Qunnect’s hardware supports government, defense, and telecommunications initiatives aimed at connecting distributed quantum processors, precision timing sensors, and secure communications. Led b

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CO.LAB Q offers 12 months to build a quantum business in Chattanoogaquantum-computing

CO.LAB Q offers 12 months to build a quantum business in Chattanooga

Beginning in November 2026, The Company Lab will launch CO.LAB Q, a 12-month commercialization studio designed to accelerate the development of quantum startups. The program connects founders with crucial infrastructure, including access to EPB Quantum’s quantum network, and technical expertise from founding partners Quantinuum and Davidson Technologies. “Quantum startups require specialized care because the path from scientific breakthrough to commercial success is unusually complex,” said Tasia Malakasis, CEO of The Company Lab, emphasizing the studio’s focus on bridging the gap between research and scalable businesses. CO.LAB Q: 12-Month Studio for Quantum Commercialization Providing both specialized computing resources and crucial insight into applications spanning commercial sectors and national security needs, a new commercialization studio launching in November 2026 is foundational to Quantinuum and Davidson Technologies. CO.LAB Q is a 12-month program designed to bridge the gap between scientific discovery and viable market solutions, focusing on individualized support rather than a standardized curriculum. Companies accepted into the studio will receive tailored roadmaps based on their specific technology, current market readiness, and long-term commercial objectives. Middle Tennessee Electric serves as CO.LAB Q’s Founding Utility Partner, offering expertise in real-world utility applications and assisting startups in identifying and validating quantum solutions to improve grid reliability and efficiency. This focus on practical application extends to a partnership with the University of Tennessee at Chattanooga, which will connect companies and students possessing specialized quantum research expertise. “Quantum advancement will matter to the war-fighter when it is tied to real mission needs and demonstrated in practice,” said Nathan Klose, vice president of Davidson Labs, highlighting the defense-focused track within the studio. Chattanooga’s unique posit

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DARPA funds Qunnect to improve quantum signal correction in fiberquantum-computing

DARPA funds Qunnect to improve quantum signal correction in fiber

Qunnect is the first company to anchor multiple quantum networks, currently distributing quantum information across telecom fiber in New York, Bozeman, Berlin, and Albuquerque. The Defense Advanced Research Projects Agency is now funding Qunnect to further develop its Carina rack, described as the “first commercially available turnkey quantum entanglement distribution system.” Carina addresses the fragility of quantum entanglement over existing telecommunications networks by continuously correcting for signal corruption. “We made an early commitment to designing instruments that operate on the same infrastructure the world already uses,” said Noel Goddard, CEO of Qunnect, as the company expands its reach to two continents through partnerships with Montana State University and Deutsche Telekom. Carina System Anchors Quantum Networks Across Telecom Fiber Qunnect currently anchors quantum networks spanning two continents, a feat previously unattained in the field of quantum entanglement distribution. This deployment is not limited to laboratory settings; Qunnect is actively utilizing established networks, a strategic decision highlighted by CEO Noel Goddard, who said that real-world fiber optic cables introduce environmental noise that degrades quantum signals, unlike classical data which is more resilient. Carina functions by actively counteracting polarization drift, essentially acting as a corrective measure for entangled photons. This proactive correction is vital for maintaining the fragile quantum states necessary for secure communication and advanced computation. Qunnect’s advancement is gaining recognition as essential infrastructure, with Chief Science Officer Mehdi Namazzi stating, “Global governments increasingly view quantum networking as critical infrastructure.” The company’s head start in deploying functional networks, rather than remaining in the theoretical stage, positions it as a key partner for organizations seeking to build future communications sy

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DARPA Funds Qunnect to Improve Quantum Network Reliabilityquantum-computing

DARPA Funds Qunnect to Improve Quantum Network Reliability

Insider Brief Press release – For decades, the distribution of quantum information has been confined to laboratory demonstrations because of the fragile nature of maintaining the fidelity of quantum entanglement across today’s deployed telecommunications fiber. However, today, Qunnect is the first company in the world to anchor multiple quantum networks distributing quantum information across the […]

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New York State Launches $60M RFP for Regional Quantum Technology Commercialization Hubsquantum-computing

New York State Launches $60M RFP for Regional Quantum Technology Commercialization Hubs

New York State Launches $60M RFP for Regional Quantum Technology Commercialization Hubs New York Governor Kathy Hochul has announced the launch of a competitive Request for Proposals (RFP) to establish up to four Regional Quantum Technology Commercialization Hubs across the state. Funded with $60 million allocated in the FY 2027 state budget and administered by Empire State Development’s Division of Science, Technology and Innovation (NYSTAR), the program will grant up to $15 million to each selected regional anchor to accelerate the commercialization of quantum computing, sensing, and secure communications research. The initiative expands upon New York’s $300 million investment in the Quantum Research and Innovation Hub at SUNY Stony Brook, establishing an integrated statewide ecosystem connecting academic laboratories, early-stage startups, and corporate partners. [ NYSTAR Statewide Quantum Commercialization Network ] │ ┌─────────────────────────────────────┼─────────────────────────────────────┐ ▼ ▼ ▼ Physical Hub Infrastructure Startup Incubation & Support Industry Pilot Execution • Lab & Specialty Testing Space. • Dedicated Quantum Accelerators. • Corporate Co-Development. • Device & Materials Fabrication. • Investor & Mentor Matchmaking. • Field Demonstrations & Pilots. • HPC & Quantum Hardware Access. • Shared Instrumentation & Tools. • IP Management & Licensing. Program specifications and operational mandates outlined in the Empire State Development RFP include: Grant Funding Allocation: Up to four non-profit or academic-led regional hubs (one per Regional Economic Development Council region) will each receive approximately $15 million for facility construction, laboratory expansion, and specialized machinery acquisition. Core Technological Scope: Each hub will maintain a primary specialization in a core domain—such as quantum processing, quantum sensing, or quantum networking—while offering shared open access to non-affiliate

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On the Swapping Capacity of a Quantum Repeaterquantum-computing

On the Swapping Capacity of a Quantum Repeater

--> Quantum Physics arXiv:2608.11429 (quant-ph) [Submitted on 11 Aug 2026] Title:On the Swapping Capacity of a Quantum Repeater Authors:Van Sy Mai, Richard J. La, Abdella Battou, Abderrahim Amlou, Cory Nunn View a PDF of the paper titled On the Swapping Capacity of a Quantum Repeater, by Van Sy Mai and 3 other authors View PDF Abstract:We study the capacity of a memory-based quantum repeater in entanglement swapping between two quantum links with either single or multiple memories, which we refer to as the end-to-end (E2E) entanglement throughput, subject to a constraint on the minimum fidelity. In order to approximate the E2E entanglement throughput, we adopt queueing models, where quantum links can have different characteristics: memory capacities, entanglement attempt rates and success probabilities, as well as classical communication latencies. We develop a model for estimating E2E entanglement fidelity, while taking into account the heterogeneous dephasing and depolarizing dynamics of quantum memories and Bell-state measurements in entanglement swapping as well as classical communication delays and noises. Finally, with the help of our models for approximating the E2E entanglement throughput and fidelity, we use the maximum waiting times of entanglements in quantum memories at the repeater as optimization variables to maximize the E2E entanglement throughput while ensuring required minimum E2E fidelity. Subjects: Quantum Physics (quant-ph); Optimization and Control (math.OC) Cite as: arXiv:2608.11429 [quant-ph]   (or arXiv:2608.11429v1 [quant-ph] for this version)   https://doi.org/10.48550/arXiv.2608.11429 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Van Sy Mai [view email] [v1] Tue, 11 Aug 2026 20:51:52 UTC (250 KB) Full-text links: Access Paper: View a PDF of the paper titled On the Swapping Capacity of a Quantum Repeater, by Van Sy Mai and 3 other authorsView PDFTeX Source view license Current b

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