Salo, J and Barnett, S M and Stenhohn, S (2006) Non-Markovian thermalisation of a two-level atom. Optics Communications, 259 (2). pp. 772-780. ISSN 0030-4018Full text not available in this repository. (Request a copy from the Strathclyde author)
We consider thermalisation and spontaneous decay of a two-level atom beyond the Markovian approximation. While the standard elimination of the continuum of radiation modes results in exponential decay represented by a Lindblad equation of motion, we use a simple toy model that takes into account the finite relaxation rate of the environment and present an exact non-Markovian master equation of the Nakajima-Zwanzig form. Because the exact derivation of non-Markovian equations has proved very difficult for all more realistic (and hence much more complicated) models, we analyze the master equation obtained and also discuss difficulties that are likely to arise with non-Markovian evolution operators. (C) 2005 Elsevier B.V. All rights reserved.
|Keywords:||open quantum systems, non-markovian master equations, dynamical semigroups, quantum physics, diffusion, cavity model, Optics. Light, Physical and Theoretical Chemistry, Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering|
|Subjects:||Science > Physics > Optics. Light|
|Department:||Faculty of Science > Physics|
|Depositing user:||Pure Administrator|
|Date Deposited:||22 Jun 2011 14:22|
|Last modified:||04 May 2016 18:26|