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Abstract: We study the speed of fluctuation of a quantum system around itsthermodynamic equilibrium state, and show that the speed will be extremelysmall for almost all times in typical thermodynamic cases. The settingconsidered here is that of a quantum system couples to a bath, both jointlydescribed as a closed system. This setting, is the same as the one consideredin N. Linden et al., Phys. Rev. E 79:061103 2009 and the ``thermodynamicequilibrium state- refers to a situation that includes the usual thermodynamicequilibrium case, as well as far more general situations.



Author: Noah Linden, Sandu Popescu, Anthony J Short, Andreas Winter

Source: https://arxiv.org/



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