Thermal coherence of Heisenberg model with dipole interaction and magnetic external field

Jin-Kai Li and Guo-Feng Zhang

Physica A: Statistical Mechanics and its Applications, 2022, vol. 590, issue C

Abstract: The dynamics of coherence in a two-qubit Heisenberg XXX model with magnetic field in the presence of the intrinsic decoherence is investigated. We discuss the influence of dipole parameter D, spin distance r, magnetic field Bz and initial state parameter α on coherence of the long time limit situation. Then, we discuss how decoherence changes with time with the initial state parameter α and the decoherence parameter γ.

Keywords: Decoherence; Heisenberg model; Master equation (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:590:y:2022:i:c:s0378437121009365

DOI: 10.1016/j.physa.2021.126730

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