Quantum 9, 1660 (2025). https://doi.org/10.22331/q-2025-03-12-1660 Quantum reinforcement learning (QRL) is a promising paradigm for near-term quantum devices. While existing QRL methods have shown success in discrete action spaces, extending these techniques to continuous domains is […]
Insider Brief Japan has established itself as a major player in quantum computing by integrating university research, corporate partnerships, and a growing hardware supply chain. The University of Tokyo’s Quantum Hardware Test Center, launched with […]
Quantum 9, 1659 (2025). https://doi.org/10.22331/q-2025-03-12-1659 This paper presents novel methods for optimizing multi-controlled quantum gates, which naturally arise in high-level quantum programming. Our primary approach involves rewriting $U(2)$ gates as $SU(2)$ gates, utilizing one auxiliary […]
Insider Brief ConScience AB has launched two new quantum devices, QiB1 and QiB2, expanding its QiB product line to support quantum research and development. QiB1 is designed for versatile testing of single qubits, including fixed […]
Insider Brief Osaka Metropolitan University physicists developed simpler formulas to quantify quantum entanglement in strongly correlated electron systems, offering new insights into quantum behaviors across various materials. Their approach focuses on local entanglement between individual […]
The National Institute of Standards and Technology (NIST) has selected HQC (Hamming Quasi-Cyclic) as a backup algorithm for post-quantum encryption, supplementing the primary ML-KEM algorithm standardized in 2024. HQC, based on error-correcting codes, provides a mathematically distinct alternative to ML-KEM, which relies on structured […]
IonQ, a leader in quantum computing and quantum networking, has raised approximately $372.6 million through its at-the-market (ATM) equity offering program, netting $360 million in proceeds. The company sold 16,038,460 shares of common stock, bringing […]
Oxford Ionics, a leader in trapped-ion quantum computing, has been selected by the UK’s Department of Science, Technology, and Innovation (DSIT) and Innovate UK for the Quantum Missions pilot programme. The Q-Surge project will upgrade the National Quantum Computing Centre (NQCC) testbed with advanced 2D […]
Innovate UK has awarded over £12 million ($15.5 million USD) to 10 projects as part of its Quantum Missions pilot competition, aimed at accelerating the commercialization and adoption of quantum computing (QC) and quantum networks (QN). The funding supports advancements in QC and QN […]
Alice & Bob, a leader in fault-tolerant quantum computing, has announced a significant advancement in cat qubit technology, achieving a 160x improvement in bit-flip error protection through a technique called “squeezing.” This innovation, detailed in a recent preprint, optimizes error […]
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