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Open Quantum Systems Decoherence

Non-equilibrium quantum phase transition via entanglement decoherence dynamics

arXiv
Authors: Yu-Chen Lin, Pei-Yun Yang, Wei-Min Zhang

Year

2016

Paper ID

42976

Status

Preprint

Abstract Read

~2 min

Abstract Words

87

Citations

N/A

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.

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  • We investigate the decoherence dynamics of continuous variable entanglement as the system-environment coupling strength varies from the weak-coupling to the strong-coupling...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1610.03919 [2] arXiv https://arxiv.org/abs/1610.03919 [3] Publisher https://arxiv.org/abs/1610.03919

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