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Boson–boson pure-dephasing model with non-Markovian properties

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Jan 2019Embargo end date: 01 Jan 2018Publisher:Elsevier BVJournal:Physics Letters A, volume 383, pages 127-135 (issn: 0375-9601,

Authors: Fei-Lei Xiong; Li Li; Zeng-Bing Chen;

doi: 10.1016/j.physleta.2018.10.022 , 10.48550/arxiv.1802.03678

arXiv: http://arxiv.org/abs/1802.03678

Boson–boson pure-dephasing model with non-Markovian properties

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Abstract

Understanding decoherence processes is crucial in the study of open quantum systems. In this paper, we discuss the mechanism of pure-dephasing process with a newly proposed boson-boson model, namely, a bosonic field coupled to another bosonic bath in thermal equilibrium. Our model is fully solvable and can reproduce the pure-dephasing process which is usually described by the well-known spin-boson model, therefore offering a new perspective to understanding decoherence processes in open quantum systems of high dimension. We also show that this model admits a generically non-Markovian dynamics with respect to various different non-Markovian measures.

8 pages, 8 figures

Related Organizations

Centre for Quantum Computation and Communication Technology
Australia
University of Science and Technology of China
China (People's Republic of)
Griffith University
Australia
Australian Research Council
Australia
University of Science and Technology of China
China (People's Republic of)

Keywords

Quantum Physics, FOS: Physical sciences, Quantum Physics (quant-ph)

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