Quantum 5, 390 (2021). https://doi.org/10.22331/q-2021-01-28-390 We discuss the notion of coherent states from three different perspectives: the seminal approach of Schrödinger, the experimental take of quantum optics, and the theoretical developments in quantum gravity. This […]
Quantum 5, 389 (2021). https://doi.org/10.22331/q-2021-01-28-389 Quantum nonlocal correlations are generated by implementation of local quantum measurements on spatially separated quantum subsystems. Depending on the underlying mathematical model, various notions of sets of quantum correlations can […]
Quantum 5, 388 (2021). https://doi.org/10.22331/q-2021-01-28-388 As the hardware technology for quantum computing advances, its possible applications are actively searched and developed. However, such applications still suffer from the noise on quantum devices, in particular when […]
Quantum 5, 387 (2021). https://doi.org/10.22331/q-2021-01-26-387 We introduce a new quantum Rényi divergence $D^{#}_{alpha}$ for $alpha in (1,infty)$ defined in terms of a convex optimization program. This divergence has several desirable computational and operational properties such […]
Quantum 5, 386 (2021). https://doi.org/10.22331/q-2021-01-25-386 Hybrid quantum-classical optimization algorithms represent one of the most promising application for near-term quantum computers. In these algorithms the goal is to optimize an observable quantity with respect to some […]
Scott Aaronson originated the proposal of Boson Sampling as an area where quantum computers should be better than regular computers. He discusses the new claim from China of Quantum Supremacy where quantum computing systems are […]
Chinese researchers performed Gaussian boson sampling by sending 50 indistinguishable single-mode squeezed states into a 100-mode ultralow-loss interferometer with full connectivity and random matrix—the whole optical setup is phase-locked—and sampling the output using 100 high-efficiency […]
In 2019 at the QCWare Q2B conference, Phillip Gerbert, Senior Partner and Managing Director at BCG, and Matt Langione, Project Leader at BCG presented their estimation of the business market for quantum computers over the […]
Nextbigfuture interviewed Tony Uttley, President of Honeywell Quantum Solutions and Brian Neyenhuis, Commercial Operations Leader, Honeywell Quantum Solutions. Honeywell has a 10 fully connected qubit system with a proven quantum volume of 128. This is […]
Quantum time crystals are systems characterized by spontaneously emerging periodic order in the time domain. Lancaster University researchers experimentally studied two adjacent quantum time crystals realized by two magnon (magnetic particles) condensates in superfluid 3He-B. […]
Recent Comments