Kinematic approach to the mixed state geometric phase in nonunitary evolution -: art. no. 080405

被引：285
作者：
Tong, DM
Sjöqvist, E
Kwek, LC
Oh, CH
机构：
[1] Natl Univ Singapore, Dept Phys, Singapore 119260, Singapore
[2] Uppsala Univ, Dept Quantum Chem, SE-75120 Uppsala, Sweden
[3] Nanyang Technol Univ, Natl Inst Educ, Singapore 639798, Singapore
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 08期
关键词：
D O I：
10.1103/PhysRevLett.93.080405
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A kinematic approach to the geometric phase for mixed quantal states in nonunitary evolution is proposed. This phase is manifestly gauge invariant and can be experimentally tested in interferometry. It leads to well-known results when the evolution is unitary.
引用
收藏
页码：080405 / 1
页数：4
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