Non-Markovian entanglement sudden death and rebirth of a two-qubit system in the presence of system-bath coherence

Hao-Tian Wang, Chuan-Feng Li, Yang Zou, Rong-Chun Ge and Guang-Can Guo

Physica A: Statistical Mechanics and its Applications, 2011, vol. 390, issue 18, 3183-3188

Abstract: We present a detailed study of the entanglement dynamics of a two-qubit system coupled to independent non-Markovian environments, employing hierarchy equations. This recently developed theoretical treatment can conveniently solve non-Markovian problems. We concentrate on calculating the death and rebirth time points of the entanglement to obtain a general view of the concurrence curve and explore the behavior of entanglement dynamics with respect to the coupling strength, the characteristic frequency of the noise bath and the environment temperature.

Keywords: Quantum entanglement; Sudden death; Non-Markovian environment (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:390:y:2011:i:18:p:3183-3188

DOI: 10.1016/j.physa.2011.04.029

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