Nonlocal aspects of a quantum wave
Nonlocal aspects of a quantum wave
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DOI：
10.1103/physreva.61.052108
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发表时间：
1999-09
影响因子：
2.9
通讯作者：
Y. Aharonov;L. Vaidman
中科院分区：
文献类型：
--
作者：
Y. Aharonov;L. Vaidman
讨论了量子波非局域性的各个方面。特别是，分析了提取有关量子波相对相位的信息的可能性的问题。有人认为，费米子和玻色子粒子之间的量子波非局域性质存在巨大差异。玻色子量子态的相位可以通过不同区域的测量结果之间的相关性来找到。这些相关性与两个纠缠系统之间的爱因斯坦-波多尔斯基-罗森 (EPR) 相关性相同。对费米子量子波进行的测量结果的集合没有表现出 EPR 相关性，并且无法从这些结果中找到费米子量子波的相对相位。无法局部测量的物理变量（相对相位）的存在是费米子量子波的非定域性方面。
Various aspects of nonlocality of a quantum wave are discussed. In particular, the question of the possibility of extracting information about the relative phase in a quantum wave is analyzed. It is argued that there is a profound difference in the nonlocal properties of the quantum wave between fermion and boson particles. The phase of the boson quantum state can be found from correlations between results of measurements in separate regions. These correlations are identical to the Einstein-Podolsky-Rosen (EPR) correlations between two entangled systems. An ensemble of results of measurements performed on fermion quantum waves does not exhibit the EPR correlations and the relative phase of fermion quantum waves cannot be found from these results. The existence of a physical variable (the relative phase) that cannot be measured locally is the nonlocality aspect of the quantum wave of a fermion.