论文标题
贝尔不平等违规和量子理论的操作员订购
Bell inequality violation and operator ordering in quantum theory
论文作者
论文摘要
我们研究了量子操作员排序在表征两光子极化铃铛测量的相关性中所起的作用。 clauser-horne-horne-holt-holt（CHSH）标准是在光电检测理论施加的正常顺序和对称顺序中的正常顺序研究，构成了从非强化可观察物的产物中构建Hermitian操作员的标准处方。这两种方法是在单个理论框架中获得的，其中操作员排序与用于密度矩阵的表示形式直接相关。此外，可以根据真空波动对检测信号的贡献进行重新估算。我们还设想通过最近的技术发展对这些波动敏感的可能检测方案。
We investigate the role played by quantum operator ordering in the correlations that characterize two-photon polarization Bell measurements. The Clauser-Horne-Shimony-Holt (CHSH) criterion is investigated in the normal ordering imposed by the photodetection theory and in the symmetric ordering that constitutes the standard prescription for building Hermitian operators from products of noncommuting observables. The two approaches are obtained in a single theoretical framework, where operator ordering is directly associated with the representation used for the density matrix.Moreover, this discussion can be recast in terms of the contribution given by the vacuum fluctuations to the detected signals. We also envisage possible detection schemes sensitive to these fluctuations with recent technological developments.
