Results 21 to 30 of about 1,751,815 (231)
Experimental unsupervised learning of non-Hermitian knotted phases with solid-state spins
npj Quantum Information, 2022 Non-Hermiticity has widespread applications in quantum physics. It brings about distinct topological phases without Hermitian counterparts, and gives rise to the fundamental challenge of phase classification. Here, we report an experimental demonstration
Yefei Yu +7 more
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Experimental demonstration of coherence flow in PT- and anti-PT-symmetric systems
Communications Physics, 2021 The gain and loss inherent in non-Hermitian quantum systems can modify the flow of coherence between subsystems, which may be lost or recovered from the environment.
Yu-Liang Fang +7 more
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Quantum Information and Randomness [PDF]
European Review, 2010 8 pages, 3 ...
Johannes Kofler, Anton Zeilinger
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Infrared Quantum Information [PDF]
Physical Review Letters, 2017 We discuss information-theoretic properties of low-energy photons and gravitons in the S-matrix. Given an incoming n-particle momentum eigenstate, we demonstrate that unobserved soft photons decohere nearly all outgoing momentum superpositions of charged particles, while the universality of gravity implies that soft gravitons decohere nearly all ...
Dominik Neuenfeld +3 more
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Coherent memory for microwave photons based on long-lived mechanical excitations
npj Quantum Information, 2023 Mechanical resonators, due to their capability to host ultralong-lived phonon modes, are particularly attractive for quantum state storage and as memory elements in conjunction with quantum computing and communication networks.
Yulong Liu +5 more
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What is quantum information? [PDF]
Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics, 2016 Abstract In the present article we address the question 'What is quantum information?' from a conceptual viewpoint. In particular, we argue that there seems to be no sufficiently good reasons to accept that quantum information is qualitatively different from classical information.
Lombardi, Olimpia +2 more
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Poisson Quantum Information [PDF]
Quantum, 2021 By taking a Poisson limit for a sequence of rare quantum objects, I derive simple formulas for the Uhlmann fidelity, the quantum Chernoff quantity, the relative entropy, and the Helstrom information. I also present analogous formulas in classical information theory for a Poisson model.
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Acta Physica Polonica A, 2021 This review article is based on a lecture on quantum information given at the XLVI Extraordinary Congress of Polish Physicists, Warsaw, Poland, October 16-18, 2020, on the occasion of the centenary of the Polish Physical Society. 37 pages, 4 figures.
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Quantum Information and Entanglement [PDF]
Advances in Mathematical Physics, 2010 1 School of Mathematical Sciences, Capital Normal University, Beijing 100048, China 2 Institute of Applied Mathematics, University of Bonn, 53115 Bonn, Germany 3 Departamento de Fisica Aplicada II, Universidad de Sevilla, 41012 Sevilla, Spain 4 Department of Mathematics, North Carolina State University, Raleigh, NC 27695, USA 5 Statistics and ...
Fei, Shao-Ming +4 more
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Software engineering for 'quantum advantage' [PDF]
, 2020 Software is a critical factor in the reliability of computer systems. While the development of hardware is assisted by mature science and engineering disciplines, software science is still in its infancy.
Abramsky S. +3 more
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