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Xanadu and HyperLight cut optical switch insertion loss to 7 mdB, advancing photonic quantum scaling
Read More: Xanadu and HyperLight cut optical switch insertion loss to 7 mdB, advancing photonic quantum scalingUsing thin-film lithium niobate optical switches, insertion loss was reduced from 20 mdB to 7 mdB. This result advances efforts to scale photonic quantum computers.
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IonQ partners with Carahsoft to expand U.S. government sales channel for quantum technologies
Read More: IonQ partners with Carahsoft to expand U.S. government sales channel for quantum technologiesCarahsoft will act as IonQ’s public-sector reseller, helping provide quantum computing, networking, sensing, and security technologies to U.S. government agencies and other public customers.
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Diraq operates 8‑qubit silicon‑spin quantum computer in commercial data center, targets 256 qubits
Read More: Diraq operates 8‑qubit silicon‑spin quantum computer in commercial data center, targets 256 qubitsDiraq has installed an 8‑qubit silicon‑spin quantum computer in a commercial data center in Sydney, Australia. It aims to expand to as many as 256 qubits within a year.
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Quantum Index Originals
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Why quantum computers threaten cryptography and why migration to PQC has begun
続きを読む: Why quantum computers threaten cryptography and why migration to PQC has begunThe day encryption is broken lies in the future. Yet the data that will be read then may already be being stolen today. Using RSA and Shor’s algorithm as entry points, this article explains why quantum computers threaten cryptography and why the world has already started migrating to post-quantum cryptography (PQC).
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Who will control the classical side of quantum computing? NVIDIA’s CUDA‑Q/NVQLink vs AMD and Xanadu’s Backline
続きを読む: Who will control the classical side of quantum computing? NVIDIA’s CUDA‑Q/NVQLink vs AMD and Xanadu’s BacklineCompetition in quantum computing won’t be decided by QPU performance alone. As QEC, real‑time control, and hybrid computation increase the need for low‑latency feedback between QPUs and classical systems, NVIDIA is expanding an integrated stack around CUDA‑Q and NVQLink, while AMD and Xanadu counter with the open heterogeneous platform Backline. Will QPU vendors or platform companies that bind QPUs together lead the quantum computing infrastructure?
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Quantum Company Portfolio
A stock portfolio of publicly traded quantum computing companies based on Quantum Index’s proprietary company rankings. It tracks both company fundamentals and market valuations over time. Currently in beta.
Quantum Industry Network
Visualize the relationships between quantum companies, partners, customers, research institutions, and government organizations. Explore the industry network shaping the commercialization of quantum technologies. Currently in beta.
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Q-CTRL reports up to 3,000× speedup in quantum simulations, but IBM-dependent delivery raises questions
Read More: Q-CTRL reports up to 3,000× speedup in quantum simulations, but IBM-dependent delivery raises questionsAutomates everything from quantum-circuit generation to placement on IBM quantum processors and error suppression for materials and chemistry research.
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IQM posts 51% revenue rise in Q3 2026; backlog tops €102.5M, cash ample
Read More: IQM posts 51% revenue rise in Q3 2026; backlog tops €102.5M, cash ampleIQM booked €42.2 million of new orders in Q3 2026. Revenue rose 51% year‑on‑year, while listing‑related costs drove a large operating loss.
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IonQ completes $1.15B all‑stock acquisition of Elisity to expand quantum security
Read More: IonQ completes $1.15B all‑stock acquisition of Elisity to expand quantum securityIonQ has acquired Elisity in an all‑stock deal. The company will combine post‑quantum cryptography, quantum key distribution, and zero‑trust to strengthen enterprise and government security offerings.
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D-Wave boosts Stride hybrid solver, achieves average TSP error within 0.02% for up to 10,000 nodes
Read More: D-Wave boosts Stride hybrid solver, achieves average TSP error within 0.02% for up to 10,000 nodesD-Wave updated the core algorithm of its Stride hybrid solver and began offering the improved version on the Leap quantum cloud. In internal comparisons on problems such as the traveling salesman problem, it reported improvements in solution quality and solve time.
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IonQ partners with Connecticut’s QuantumCT to provide 150+ hours of quantum cloud access
Read More: IonQ partners with Connecticut’s QuantumCT to provide 150+ hours of quantum cloud accessQuantumCT has secured access to IonQ’s quantum computing resources and will provide them to universities, research institutions, startups, and companies across Connecticut.
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Universal Quantum unveils scalable ion‑trap iQPU chip, deployment boosted by major German contract
Read More: Universal Quantum unveils scalable ion‑trap iQPU chip, deployment boosted by major German contractIntegrates over 400 mm² of computational area with control circuitry and inter‑chip connectivity to enable expansion of quantum computers via multiple chips.
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FAU reports 91.90% lung‑cancer prediction on D‑Wave hardware, no proven edge over classical methods
Read More: FAU reports 91.90% lung‑cancer prediction on D‑Wave hardware, no proven edge over classical methodsFAU compared methods for predicting lung cancer from limited symptom and risk‑factor data; a D‑Wave hardware method achieved 91.90% accuracy.
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Infleqtion demonstrates Tiqker optical atomic clock aboard U.S. Navy ship, expanding non‑quantum‑computing business model
Read More: Infleqtion demonstrates Tiqker optical atomic clock aboard U.S. Navy ship, expanding non‑quantum‑computing business modelInfleqtion conducted continuous operation of its Tiqker optical atomic clock aboard a U.S. Navy support vessel, evaluating GPS‑independent precision timing in a maritime environment.
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Qblox joins HPE’s quantum–HPC integration initiative; rival Quantum Machines also included
Read More: Qblox joins HPE’s quantum–HPC integration initiative; rival Quantum Machines also includedQblox and HPE will collaborate on developing a classical–quantum hybrid platform, using an integrated testbed to evaluate interoperability and system-level performance.
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PsiQuantum receives up to $150M conditional DoD loan commitment to bolster U.S. manufacturing after DARPA Stage C
Read More: PsiQuantum receives up to $150M conditional DoD loan commitment to bolster U.S. manufacturing after DARPA Stage CPsiQuantum has received a conditional loan commitment of up to $150 million from the U.S. Department of Defense (referred to in the announcement as the Department of War). The funds are intended to expand U.S.-based prototyping, manufacturing, and system-integration capabilities.
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Alice & Bob estimate 22,593 physical qubits to break RSA‑2048; comparison with IonQ highlights FTQC design differences
Read More: Alice & Bob estimate 22,593 physical qubits to break RSA‑2048; comparison with IonQ highlights FTQC design differencesThey published resource estimates for Shor’s algorithm using cat qubits and LDPC‑cat codes, estimating RSA‑2048 could be broken in 3.14 days.
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SEEQC and NVIDIA simulation shows ~50% cut in QEC latency and logical error rate
Read More: SEEQC and NVIDIA simulation shows ~50% cut in QEC latency and logical error rateCombining SEEQC’s chip-based pre-decoder with NVIDIA Ising, simulations reduced decoding latency and logical error rate by about 50%.