Minimal irreversible quantum mechanics: The mixed states and the diagonal singularity

被引：40
|
作者：
Laura, R
Castagnino, M
机构：
[1] Univ Nacl Rosario, FCEIA, Dept Fis, CONICET,Inst Fis Rosario, RA-2000 Rosario, Santa Fe, Argentina
[2] Inst Astron & Fis Espacio, RA-1428 Buenos Aires, DF, Argentina
来源：
PHYSICAL REVIEW A | 1998年 / 57卷 / 06期
关键词：
D O I：
10.1103/PhysRevA.57.4140
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A formalism for minimal irreversible quantum mechanics is extended from pure states to mixed states. In the latter case the problem of their diagonal singularity is explained and solved. In addition to the pure and mixed states of the usual approach, more general states are obtained. The Friedrichs model is studied. Decoherence is found and decoherence characteristic times are computed.
引用
收藏
页码：4140 / 4152
页数：13
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