Randomly Generating Four Mixed Bell-Diagonal States with a Concurrences Sum to Unity

作     者：S.P.Toh Hishamuddin Zainuddin Kim Eng Foo 

作者机构：Faculty of EngineeringThe University of Nottingham Malaysia CampusJalan Broga43500 SemenyihSelangor Darul EhsanMalaysia Laboratory of Computational Sciences and Mathematical PhysicsInstitute for Mathematical ResearchUniversiti Putra Malaysia43400 UPM SerdangSelangorMalaysia Department of PhysicsFaculty of ScienceUniversiti Putra Malaysia43400 UPM SerdangSelangorMalaysia Faculty of Health and Life SciencesINTI International UniversityPersiaran Perdana BBNPutra Nilai71800 NilaiNegeri SembilanMalaysia 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2012年第29卷第1期

页      面：24-27页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

主　　题：quantum concurrence representation 

摘      要：A two-qubit system in quantum information theory is the simplest bipartite quantum system and its concurrence for pure and mixed states is well *** a subset of two-qubit systems,Bell-diagonal states can be depicted by a very simple geometrical representation of a tetrahedron with sides of length 2√*** on this geometric representation,we propose a simple approach to randomly generate four mixed Bell decomposable states in which the sum of their concurrence is equal to one.