Results 31 to 40 of about 32,729 (313)
Coherence-Preserving Quantum Bits [PDF]
Physical Review Letters, 2001 5 pages, 1 ...
Bacon, D., Brown, K. R., Whaley, K. B.
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Set Coherence: Basis-Independent Quantification of Quantum Coherence [PDF]
Physical Review Letters, 2021 10 ...
Sébastien Designolle +3 more
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Quantum criticality at high temperature revealed by spin echo
New Journal of Physics, 2013 Quantum criticality occurs when the ground state of a macroscopic quantum system changes abruptly on tuning system parameters. It is an important indicator of new quantum matters emerging.
Shao-Wen Chen +2 more
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Coherence and Entanglement Dynamics in Training Variational Quantum Perceptron
Entropy, 2020 In quantum computation, what contributes supremacy of quantum computation? One of the candidates is known to be a quantum coherence because it is a resource used in the various quantum algorithms.
Min Namkung, Younghun Kwon
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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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