It is shown that information entropy , the local distinguishability of states and the distillable entanglement are closely and generally related 利用这个关系式还可讨论无限拷贝下混合态的提取纠缠和提取纠缠的下限。
2.
According to horodeckis , the coherent information of entangled state is supposed to be the lower bound of one - way distillable entanglement . this postulation is called hashing inequality , which is crucial in proving noisy channel coding theorem . it is shown that there are no direc 根据horodecki等人的研究，纠缠态的相干信息推测是单向蒸馏纠缠的下限，该假设称为hashing不等n式，对证明有噪信道编码定理至关重要
3.
This thesis will probe the property of non - locality from the following fields : inseparability criterion of quantum states , purification or distillation of entanglement , local distinguishability of orthogonal quantum states , and the relations among information entropy , distillable entanglement and local distinguishability of orthogonal states 本文研究了量子信息基本理论中与非局域性有关的几个重要问题：纠缠态的判别；纠缠的纯化和提取；正交量子态的局域区分；以及信息熵、纠缠的纯化与提取、正交量子态的局域区分三者之间的关系。
4.
Two conceptions of quasiseparable state and distillable subspace are introduced . first a necessary condition of distillability from finite copies is given , then a necessary and sufficient condition of distillability from finite copies and the most efficient distillation protocol are given . these conclusions can be generalized to multi - partite mixed states 定义了准分离态和提取子空间的概念，得到了在有限个拷贝情况下，二体和多体混合态纠缠提取的必要条件、充要条件及最有效的提取方案；计算了2 (
5.
In terms of information an new interpretation for the distillation of entanglement and the distinguishability of orthogonal states is given . using a special protocol we give a sufficient and necessary condition for the local distinguishability of states , and gain the maximal yield of the distillable entanglement 这个关系式揭示了系统的不确定性与系统的非局域性之间的关系(我们相信系统的不确定性与系统的非局域性之间的关系研究将成为量子信息的一个有意义的方向) 。
