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Relaxation Process of Interacting Two-mode System Influenced by Markovian Thermal Reservoirs

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Abstract

Two different models of a relaxation process are considered for a linearly interacting two-mode system under the influence of independent Markovian thermal reservoirs. One is to describe the relaxation process of bare particles and the other is to describe the one of quasi particles which are derived from bare particles by the Bogoliubov transformation. The difference is that the former does not includes the effect of the inter-mode interaction on the damping operator while the latter does. The equations of motion are solved algebraically by making use of non-equilibrium thermo field dynamics. The relaxation processes in the two models are investigated in detail. The results are applied for investigating a non-ideal beam splitter with photon loss and noise addition.

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  1. Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Ohtsuka, Bunkyo-ku, Tokyo, 112-8610, Japan

    Masashi Ban

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  1. Masashi Ban
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Correspondence to Masashi Ban.

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Ban, M. Relaxation Process of Interacting Two-mode System Influenced by Markovian Thermal Reservoirs. Int J Theor Phys 56, 530–545 (2017). https://doi.org/10.1007/s10773-016-3195-4

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