论文标题
在高斯州的协方差矩阵上
On the covariance matrix for Gaussian states
论文作者
论文摘要
我们显示了一般高斯状态的协方差矩阵的显式表达,从符号组矩阵方面。我们讨论使用协方差矩阵表征挤压和纠缠的标准如何产生用于构建普通高斯州的符号矩阵元素中的新标准。
We show the explicit expression for the covariance matrix of general Gaussian states in terms of the symplectic group matrices. We discuss how the criteria to characterize squeezing and entanglement using the covariance matrix give rise to new criteria in the symplectic matrix elements used to construct the general Gaussian states.