Thermalization of quantum systems by finite baths

Details Thermalization of quantum systems by finite baths Thermalization of quantum systems by finite baths

2005-11-03

arxiv.org/abs/quant-ph/0511023v1

Europhys. Lett. 73, 1 (2006)

Physics

Quantum Physics

7 pages, 6 figures, accepted for publication in Eur. Phys. Lett

Scientific paper

10.1209/epl/i2005-10363-0

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.

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