Non-Markovian master equations from entanglement with stationary unobserved degrees of freedom.

Budini, Adrián A. and Schomerus, Henning (2005) Non-Markovian master equations from entanglement with stationary unobserved degrees of freedom. Journal of Physics -London- a Mathematical and General, 38 (42). pp. 9251-9262. ISSN 0305-4470

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Abstract

We deduce a class of non-Markovian completely positive master equations which describe a system in a composite bipartite environment, consisting of a Markovian reservoir and additional stationary unobserved degrees of freedom that modulate the dissipative coupling. The entanglement-induced memory effects can persist for arbitrary long times and affect the relaxation to equilibrium, as well as induce corrections to the quantum-regression theorem. By considering the extra degrees of freedom as a discrete manifold of energy levels, strong non-exponential behaviour can arise, such as for example power law and stretched exponential decays.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Physics -London- a Mathematical and General
Additional Information:
The final, definitive version of this article has been published in the Journal, Journal of Physics A 38 (42), 2005, © Institute of Physics
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
636
Deposited By:
Deposited On:
16 Oct 2007
Refereed?:
Yes
Published?:
Published
Last Modified:
19 Feb 2020 08:01