spin density operator 自旋密度算符
probability current density operator 概率流密度算符
reduce density operator 约化密度算符
current density operator 流密度算符
particle density operator 粒子密度算符
relevant density operator 中肯密度算符
density operator expansion 密度算符展开
The quantum pure state and mixed state are the most important quantum states in quantum information. They are the foundation of studying density operator,quantum entanglement and quantum decoherence.
量子纯态和混合态是量子信息中最重要的两种量子态,是研究密度算符、量子纠缠态和量子消相干的基础。
参考来源 - 量子纯态与混合态中力学量测量研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The master equations of a reduced system density operator , by means of the Liouville equation and the projection operators techniques have been derived.
在本文中我们利用投影算符技巧通过刘维方程推导了系统约化密度主方程，这种方法特别适合于赝非马尔可夫的库场情况。
Methods the distance between two different multimode odd coherent state light fields was analyzed theoretically by the method of distance functions of density operator.
方法采用两个不同态的密度算符距离函数方法，从理论上研究两个不同多模奇相干态光场之间的距离。
Using it we can conveniently and simply convert a ME into its corresponding differential equation and from solution of which we can extract the reduced density operator.
该方法能方便、简洁地将密度主方程转化为对应的普通微分方程，并能从微分方程的解中提取出约化密度算符。
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