標題: Simulating Open Quantum Systems with Hamiltonian Ensembles and the Nonclassicality of the Dynamics
作者: Chen, Hong-Bin
Gneiting, Clemens
Lo, Ping-Yuan
Chen, Yueh-Nan
Nori, Franco
電子物理學系
Department of Electrophysics
公開日期: 19-一月-2018
摘要: The incoherent dynamical properties of open quantum systems are generically attributed to an ongoing correlation between the system and its environment. Here, we propose a novel way to assess the nature of these system-environment correlations by examining the system dynamics alone. Our approach is based on the possibility or impossibility to simulate open-system dynamics with Hamiltonian ensembles. As we show, such (im) possibility to simulate is closely linked to the system-environment correlations. We thus define the nonclassicality of open-system dynamics in terms of the nonexistence of a Hamiltonian-ensemble simulation. This classifies any nonunital open-system dynamics as nonclassical. We give examples for open-system dynamics that are unital and classical, as well as unital and nonclassical.
URI: http://dx.doi.org/10.1103/PhysRevLett.120.030403
http://hdl.handle.net/11536/144430
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.120.030403
期刊: PHYSICAL REVIEW LETTERS
Volume: 120
顯示於類別:期刊論文