Results 61 to 70 of about 1,995,098 (263)
European Physical Journal C: Particles and Fields, 2022 We study the dynamics of Gaussian quantum coherence under the background of a Garfinkle–Horowitz–Strominger dilaton black hole. It is shown that the dilaton field has evident effects on the degree of coherence for all the bipartite subsystems.
Qinglong Xiao +3 more
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The Tightness of Multipartite Coherence from Spectrum Estimation
Entropy, 2021 Detecting multipartite quantum coherence usually requires quantum state reconstruction, which is quite inefficient for large-scale quantum systems.
Qi-Ming Ding, Xiao-Xu Fang, He Lu
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Quantum coherence, coherent information and information gain in quantum measurement [PDF]
EPL (Europhysics Letters), 2019 A measurement is deemed successful, if one can maximize the information gain by the measurement apparatus. Here, we ask if quantum coherence of the system imposes a limitation on the information gain during quantum measurement. First, we argue that the information gain in a quantum measurement is nothing but the coherent information or the distinct ...
Sharma, Gautam +2 more
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Entanglement polygon inequality in qubit systems
New Journal of Physics, 2018 We prove a set of tight entanglement inequalities for arbitrary N -qubit pure states. By focusing on all bi-partite marginal entanglements between each single qubit and its remaining partners, we show that the inequalities provide an upper bound for each
Xiao-Feng Qian +2 more
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Assisted Distillation of Quantum Coherence [PDF]
Physical Review Letters, 2016 We introduce and study the task of assisted coherence distillation. This task arises naturally in bipartite systems where both parties work together to generate the maximal possible coherence on one of the subsystems. Only incoherent operations are allowed on the target system while general local quantum operations are permitted on the other, an ...
Chitambar, E. +5 more
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Room-temperature valley coherence in a polaritonic system
Nature Communications, 2019 Owing to the presence of strongly bound excitons and degenerate valleys, monolayer transition metal dichalcogenides show promise for valleytronic applications.
L. Qiu +3 more
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Evolution of quantum resources in quantum-walk-based search algorithm
Results in Physics, 2023 Quantum walk is fundamental to designing many quantum algorithms. Here we consider the effects of quantum coherence and quantum entanglement for the quantum walk search on the complete bipartite graph.
Meng Li, Xian Shi
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Quantum cryptography with coherent states [PDF]
Physical Review A, 1995 20 pp. Revtex, Figures available from the authors upon request, To be published in PRA (March 95)
Huttner, B. +3 more
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Author Correction: Room-temperature valley coherence in a polaritonic system
Nature Communications, 2019 An amendment to this paper has been published and can be accessed via a link at the top of the paper.
L. Qiu +3 more
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Some Remarks on Quantum Coherence
, 1994 There are many striking phenomena which are attributed to ``quantum coherence''. It is natural to wonder if there are new quantum coherence effects waiting to be discovered which could lead to interesting results and perhaps even practical applications.
Alberecht A. +9 more
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