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A Geometrical Model of Fermion Spin Correlations

机译:费米子自旋相关的几何模型

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Bell’s Theorem places limits on correlations between local spin measurements ofentangled particles whose properties are described by ”hidden variables” established priorto measurement. Bell’s derivation assumes that the density of states, or sampling rate, isindependent of the orientation of the measuring device. However, points on a rotating sphereare sampled at different rates at different positions, making Bell’s Theorem inapplicable. Wemodel spin one-half fermions as having a spherical distribution of observables with azimuthalsymmetry, and assume that a Stern-Gerlach device uniformly samples points on a sphericalsurface. Application of Bayes’ Theorem yields the joint density of states for two deviceorientations. Numerical calculations based on this model yield the fermion spin correlationsobserved in Stern-Gerlach experiments.
机译:贝尔定理对缠结粒子的局部自旋测量之间的相关性进行了限制,这些缠结粒子的属性由测量之前建立的“隐变量”描述。贝尔的推论假设状态密度或采样率与测量设备的方向无关。但是,旋转球体上的点在不同位置以不同的速率采样,这使得贝尔定理不适用。我们将自旋半费米子建模为具有方位角对称的可观察物的球形分布,并假设Stern-Gerlach装置均匀采样球面上的点。贝叶斯定理的应用产生了两种器件取向的状态联合密度。基于该模型的数值计算得出了斯特恩-盖拉赫实验中观察到的费米子自旋相关性。

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