Non-equilibrium quantum phase transition via entanglement decoherence dynamics
Quantum Physics
2016-10-14 v1
Abstract
We investigate the decoherence dynamics of continuous variable entanglement as the system-environment coupling strength varies from the weak-coupling to the strong-coupling regimes. Due to the existence of localized modes in the strong-coupling regime, the system cannot approach equilibrium with its environment, which induces a nonequilibrium quantum phase transition. We analytically solve the entanglement decoherence dynamics for an 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 3-D entanglement quantum phase diagram is obtained.
Cite
@article{arxiv.1610.03919,
title = {Non-equilibrium quantum phase transition via entanglement decoherence dynamics},
author = {Yu-Chen Lin and Pei-Yun Yang and Wei-Min Zhang},
journal= {arXiv preprint arXiv:1610.03919},
year = {2016}
}
Comments
16 pages, 3 figures