Kyndryl (NYSE: KD), a leading provider of mission-critical enterprise technology services, has unveiled its Quantum Safe Assessment service to help enterprises prepare for the security threats posed by quantum computing. The new service is designed […]
Quantum 9, 1940 (2025). https://doi.org/10.22331/q-2025-12-11-1940 (i) We point out that every local unitary circuit of depth smaller than the linear system size is easily distinguished from a global Haar random unitary if there is a […]
Quantum 9, 1939 (2025). https://doi.org/10.22331/q-2025-12-11-1939 We propose a Bell test experiment using momentum-entangled atom pairs of different masses, specifically metastable helium isotopes ${}^{3}He^{*}$ and ${}^{4}He^{*}$, though the method extends to other atom species. Entanglement is […]
Qubit Pharmaceuticals, a Paris-based deep-tech company, has announced two simultaneous milestones solidifying its position in advanced quantum algorithm development for molecular simulation. The breakthroughs address both the theoretical speed limits of quantum computing and the […]
Over the past decades, engineers have introduced numerous technologies that rely on light and its underlying characteristics. These include photonic and quantum systems that could advance imaging, communication and information processing. Click to rate this […]
Quantum 9, 1938 (2025). https://doi.org/10.22331/q-2025-12-11-1938 The detection and quantification of non-Markovianity, a.k.a. memory, in quantum systems is a central problem in the theory of open quantum systems. There memory is as a result of the […]
Quantum 9, 1937 (2025). https://doi.org/10.22331/q-2025-12-11-1937 We present a finite-size security proof of the decoy-state BB84 QKD protocol against coherent attacks, using entropic uncertainty relations, for imperfect detectors. We apply this result to the case of […]
Quantum 9, 1936 (2025). https://doi.org/10.22331/q-2025-12-11-1936 Recently, usage of detecting regions facilitated the discovery of new circuits for fault-tolerantly implementing the surface code. Building on these ideas, we present LUCI, a framework for constructing fault-tolerant circuits […]
Quantum Corridor, in collaboration with Toshiba International Corporation (TIC) and partners, has successfully demonstrated quantum-secured communication using Quantum Key Distribution (QKD) over a live commercial metropolitan fiber network connecting data centers in Illinois and Indiana. […]
SandboxAQ, a company delivering solutions at the intersection of AI and quantum techniques, has announced a five-year agreement with the Department of War (DoW) Chief Information Officer (CIO) to accelerate the discovery and inventory of […]
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