Non-equilibrium quantum phase transition via entanglement decoherence dynamics

Yu Chen Lin, Pei Yun Yang, Wei Min Zhang

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

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.

Original languageEnglish
Article number34804
JournalScientific reports
Volume6
DOIs
Publication statusPublished - 2016 Oct 7

All Science Journal Classification (ASJC) codes

  • General

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