Random-Matrix Model for Thermalization

Hans A. Weidenmüller

An isolated quantum system is said to thermalize if $\mathrm{Tr}(A\rho (t))\to \mathrm{Tr}(A{\rho }_{\mathrm{eq}})$ for time $t\to \infty$. Here $\rho (t)$ is the time-dependent density matrix of the…