On the speed of fluctuations around thermodynamic equilibrium

Understand

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.