A note on invariants and entanglements

被引:158
作者
Albeverio, S [1 ]
Fei, SM
机构
[1] Univ Bonn, Inst Angew Math, D-53115 Bonn, Germany
[2] Chinese Acad Sci, Inst Appl Math, Beijing, Peoples R China
关键词
entanglement; invariants;
D O I
10.1088/1464-4266/3/4/305
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Quantum entanglements are studied in terms of the invariants under local unitary transformations. A generalized formula of concurrence for N-dimensional quantum systems is presented. This generalized concurrence has potential applications in studying separability and calculating the entanglement of formation for high-dimensional mixed quantum states.
引用
收藏
页码:223 / 227
页数:5
相关论文
共 29 条
[1]   Teleportation of general finite-dimensional quantum systems [J].
Albeverio, S ;
Fei, SM .
PHYSICS LETTERS A, 2000, 276 (1-4) :8-11
[2]  
ALBEVERIO S, 2001, UNPUB SEPARABILITY M
[3]  
ALBEVERIO S, 2001, IN PRESS PHYS LETT A
[4]  
Bell J. S., 1964, Physics Physique Fizika, V1, P195, DOI [DOI 10.1103/PHYSICSPHYSIQUEFIZIKA.1.195, 10.1103/Physics-PhysiqueFizika.1.195]
[5]   COMMUNICATION VIA ONE-PARTICLE AND 2-PARTICLE OPERATORS ON EINSTEIN-PODOLSKY-ROSEN STATES [J].
BENNETT, CH ;
WIESNER, SJ .
PHYSICAL REVIEW LETTERS, 1992, 69 (20) :2881-2884
[6]   TELEPORTING AN UNKNOWN QUANTUM STATE VIA DUAL CLASSICAL AND EINSTEIN-PODOLSKY-ROSEN CHANNELS [J].
BENNETT, CH ;
BRASSARD, G ;
CREPEAU, C ;
JOZSA, R ;
PERES, A ;
WOOTTERS, WK .
PHYSICAL REVIEW LETTERS, 1993, 70 (13) :1895-1899
[7]  
Bennett CH, 1996, PHYS REV A, V54, P3824, DOI 10.1103/PhysRevA.54.3824
[8]   Concentrating partial entanglement by local operations [J].
Bennett, CH ;
Bernstein, HJ ;
Popescu, S ;
Schumacher, B .
PHYSICAL REVIEW A, 1996, 53 (04) :2046-2052
[9]   QUANTUM COMPUTATION [J].
DIVINCENZO, DP .
SCIENCE, 1995, 270 (5234) :255-261
[10]  
FEI SM, 2001, ENTANGLEMENT FORMATI