Non-equilibrium quantum phase transition via entanglement decoherence dynamic

摘要

We investigate the non-Markovian decoherence dynamics of continuous variable entanglement as the system-environment coupling strength varies from the weak-coupling regime into the strong-coupling regime Due to the existence of localized bound states in the strong-coupling regime the system remains in nonequilibrium and a nonequilibrium quantum phase transition occurs We analytically solve the entanglement decoherence dynamics for arbitrary spectral density The nonequilibrium quantum phase transition is demonstrated as the system-environment coupling strength varies for all the Ohmic-type spectral densities The entanglement quantum phase diagram is obtained

獎項日期	2016 六月 16
原文	English
監督員	Wei-Min Zhang (Supervisor)