Introduction: Individuality, Distinguishability, and (Non-)Entanglement
Introduction: Individuality, Distinguishability, and (Non-)Entanglement
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简介：个性、可区分性和（非）纠缠
DOI：
10.1007/s10838-021-09568-0
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发表时间：
2021
影响因子：
1
通讯作者：
Wachter
中科院分区：
文献类型：
--
作者：
Friebe;Salimkhani;Wachter
基本粒子以不同的方式出现。相同种类的粒子（相似粒子）共享所有与状态无关的性质，如质量、电荷和自旋量子数;有许多相似的粒子，但它们在某类性质上是不可区分的。然而，这种情况甚至可能更强：类似的粒子显然具有所有依赖于状态的性质，如空间位置和自旋投影。这威胁到莱布尼茨著名的不可否认的同一性原则（PII;见Rodriguez-Pereyra（2014）的历史重建）的有效性。正如通常所理解的，量子力学要求相似的粒子处于排列不变状态。以下面的状态为例：具有空间位置L和R的性质以及自旋性质↑ z和↓ z。根据标准阅读，两个颗粒处于相同的状态，即处于相同的两颗粒状态，或者如果优选的话，处于相同的还原混合状态：
Elementary particles appear in different ways. Particles of the same kind (similar particles) share all state-independent properties like mass, charge, and spin quantum number; there are many similar particles, but they are indistinguishable with respect to a certain class of properties. However, the case might even be stronger: similar particles apparently share all state-dependent properties, like spatial location and spin projection. This threatens the validity of Leibniz’s famous Principle of the Identity of Indiscernibles (PII; see Rodriguez-Pereyra (2014) for a historical reconstruction). As it is usually understood, quantum mechanics requires for similar particles to be in permutation invariant states. Take the following state, for example: with properties of spatial location L and R and spin properties↑ z and↓ z. According to the standard reading, both particles are in the same state, namely in the same two-particle state or, if preferred, in the same reduced mixed state:
关于量子粒子
影响因子：
7.8
作者：
M. Nagasawa
通讯作者：
M. Nagasawa