Evolution of Entanglement Spectra under Generic Quantum Dynamics
Evolution of Entanglement Spectra under Generic Quantum Dynamics
We characterize the early stages of the approach to equilibrium in isolated quantum systems through the evolution of the entanglement spectrum. We find that the entanglement spectrum of a subsystem evolves with three distinct timescales. First, on an o(1) timescale, independent of system or subsystem size and the details of …