Quantum discord and Maxwell's demons
Quantum discord and Maxwell's demons
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DOI：
10.1103/physreva.67.012320
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发表时间：
2003-01-01
影响因子：
2.9
通讯作者：
Zurek, WH
中科院分区：
文献类型：
--
作者：
Zurek, WH
量子不和谐被提出作为相关的“量子化”的信息理论度量。我指出，在从相关量子系统集合中提取功时，不和谐决定了量子和经典麦克斯韦妖（即能够或不能测量非局部可观测物或执行条件量子操作的实体）效率之间的差异。
Quantum discord was proposed as an information-theoretic measure of the "quantumness" of correlations. I show that discord determines the difference between the efficiency of quantum and classical Maxwell's demons-that is, entities that can or cannot measure nonlocal observables or carry out conditional quantum operations-in extracting work from collections of correlated quantum systems.