On the speed of fluctuations around thermodynamic equilibrium

Details On the speed of fluctuations around thermodynamic equilibrium On the speed of fluctuations around thermodynamic equilibrium

2009-07-07

arxiv.org/abs/0907.1267v1

Physics

Quantum Physics

Scientific paper

We study the speed of fluctuation of a quantum system around its thermodynamic equilibrium state, and show that the speed will be extremely small for almost all times in typical thermodynamic cases. The setting considered here is that of a quantum system couples to a bath, both jointly described as a closed system. This setting, is the same as the one considered in [N. Linden et al., Phys. Rev. E 79:061103 (2009)] and the ``thermodynamic equilibrium state'' refers to a situation that includes the usual thermodynamic equilibrium case, as well as far more general situations.

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