Entanglement and Geometric Phase for Two-Particle System in Nuclear Magnetic Resonance

被引:5
作者
Yang, Wenjuan [1 ]
Zhang, Weijia [1 ]
Tang, Hongshan [2 ]
Wang, Z. S. [1 ,3 ]
机构
[1] Jiangxi Normal Univ, Coll Phys & Commun Elect, Nanchang 330022, Peoples R China
[2] Jiangxi Journalism & Publicat Coll, Nanchang 330224, Jiangxi, Peoples R China
[3] Key Lab Optoelect & Telecommun Jiangxi, Nanchang 330022, Jiangxi, Peoples R China
关键词
Entangled degree; Geometric phase; Entangling geometric quantum gate; PROBABILITY RELATIONS; SEPARATED SYSTEMS; QUANTUM; SEPARABILITY; STATE;
D O I
10.1007/s10773-010-0518-8
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Evolution of entangled degree with geometric phases and initial conditions are investigated for two-particle system in nuclear magnetic resonance under cyclic evolution. We find that a perfect entanglement may be obtained by controlling the geometric phases and initial conditions, which is helpful to implement a universal entangling geometric quantum gate in nuclear magnetic resonance.
引用
收藏
页码:260 / 268
页数:9
相关论文
共 23 条
[1]  
Bell J. S., 1964, Physics, V1, P195, DOI [10.1103/physicsphysiquefizika.1.195, DOI 10.1103/PHYSICSPHYSIQUEFIZIKA.1.195, 10.1103/Physics-PhysiqueFizika.1.195]
[2]   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
[4]   Teleportation with the entangled states of a beam splitter [J].
Cochrane, PT ;
Milburn, GJ .
PHYSICAL REVIEW A, 2001, 64 (06) :4
[5]   Geometric manipulation of trapped ions for quantum computation [J].
Duan, LM ;
Cirac, JI ;
Zoller, P .
SCIENCE, 2001, 292 (5522) :1695-1697
[6]   Can quantum-mechanical description of physical reality be considered complete? [J].
Einstein, A ;
Podolsky, B ;
Rosen, N .
PHYSICAL REVIEW, 1935, 47 (10) :0777-0780
[7]   QUANTUM CRYPTOGRAPHY BASED ON BELL THEOREM [J].
EKERT, AK .
PHYSICAL REVIEW LETTERS, 1991, 67 (06) :661-663
[8]   General criterion for the entanglement of two indistinguishable particles [J].
Ghirardi, G ;
Marinatto, L .
PHYSICAL REVIEW A, 2004, 70 (01) :012109-1
[9]   Entanglement and properties [J].
Ghirardi, G ;
Marinatto, L .
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS, 2003, 51 (4-5) :379-387
[10]   Separability of mixed states: Necessary and sufficient conditions [J].
Horodecki, M ;
Horodecki, P ;
Horodecki, R .
PHYSICS LETTERS A, 1996, 223 (1-2) :1-8