Thermalization of quantum systems by finite baths

被引:38
作者
Gemmer, J
Michel, M
机构
[1] Univ Osnabruck, Dept Phys, D-49069 Osnabruck, Germany
[2] Univ Stuttgart, Inst Theoret Phys 1, D-70550 Stuttgart, Germany
来源
EUROPHYSICS LETTERS | 2006年 / 73卷 / 01期
关键词
D O I
10.1209/epl/i2005-10363-0
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We consider a discrete quantum system coupled to a finite bath, which may consist of only one particle, in contrast to the standard baths which usually consist of continua of oscillators, spins, etc. We find that such finite baths may nevertheless equilibrate the system though not necessarily in the way predicted by standard open-system techniques. This behavior results regardless of the initial state being correlated or not.
引用
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页码:1 / 7
页数:7
相关论文
共 20 条
[1]  
Alicki R., 2007, Volume 717 of Lecture Notes in Physics, V717
[2]  
Breuer H.-P., 2002, THEORY OPEN QUANTUM
[3]   Non-Markovian dynamics in a spin star system: Exact solution and approximation techniques [J].
Breuer, HP ;
Burgarth, D ;
Petruccione, F .
PHYSICAL REVIEW B, 2004, 70 (04) :045323-1
[4]   INFLUENCE OF DAMPING ON QUANTUM INTERFERENCE - AN EXACTLY SOLUBLE MODEL [J].
CALDEIRA, AO ;
LEGGETT, AJ .
PHYSICAL REVIEW A, 1985, 31 (02) :1059-1066
[5]   From pure Schrodingerian to statistical dynamics [J].
Gemmer, J ;
Michel, M .
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2005, 29 (1-2) :136-144
[6]   Distribution of local entropy in the Hilbert space of bi-partite quantum systems: origin of Jaynes' principle [J].
Gemmer, J ;
Mahler, G .
EUROPEAN PHYSICAL JOURNAL B, 2003, 31 (02) :249-257
[7]   Quantum approach to a derivation of the second law of thermodynamics [J].
Gemmer, J ;
Otte, A ;
Mahler, G .
PHYSICAL REVIEW LETTERS, 2001, 86 (10) :1927-1930
[8]  
Gemmer J., 2004, LECT NOTES PHYS, V657
[9]  
HANGGI P, 2004, DPG SPRING M
[10]   NUMBER OF DEGREES OF FREEDOM FOR A THERMOSTAT [J].
KOLOVSKY, AR .
PHYSICAL REVIEW E, 1994, 50 (05) :3569-3576