太原理工大学学报2017，Vol.48Issue(6)：1021-1024,4.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.06.025
双量子比特置换不变态的矩阵表示及纠缠判据
Matrix Representation and Entanglement Criterion of Two-Qubit Permutationally Invariant States
摘要
Abstract
In the paper,some relevant properties of swap operator are discussed,and the con-crete matrix representation for two-qubit permutationally invariant states is given.The correla-tion between realignment matrix and partial transpose matrix of these states is obtained.By the relations among entries of matrix,a quantitative criterion is given to judge whether or not two-qubit permutationally invariant states are entangled.关键词
置换不变态/对称量子态/翻转算子Key words
permutationally invariant state/symmetric quantum state/swap operator分类
数理科学引用本文复制引用
梁晓荣,阎思青..双量子比特置换不变态的矩阵表示及纠缠判据[J].太原理工大学学报,2017,48(6):1021-1024,4.基金项目
国家自然科学基金资助项目(11671294),太原理工大学校科技发展基金(1205-04020102) （11671294）
