Please use this identifier to cite or link to this item:
Title: Role of initial system-environment correlations: A master equation approach
Authors: Chaudhry, A.Z.
Gong, J. 
Issue Date: 11-Nov-2013
Citation: Chaudhry, A.Z., Gong, J. (2013-11-11). Role of initial system-environment correlations: A master equation approach. Physical Review A - Atomic, Molecular, and Optical Physics 88 (5) : -. ScholarBank@NUS Repository.
Abstract: In order to achieve practical implementations of emerging quantum technologies, it is important to have a firm understanding of the dynamics of realistic quantum open systems. Master equations provide a widely used tool in this regard. In this work we first construct a master equation, valid for weak system-environment coupling, which explicitly takes into account the impact of preparing an initial system state from an equilibrium system-environment state that has system-environment correlations. We then investigate the role of initial system-environment correlations using this master equation for a system consisting of many two-level atoms interacting with a common environment. We show that, in general, due to the initial system-environment correlations before a state preparation, the quantum state of the system can evolve at a faster time scale. Moreover, we also consider different initial state preparations, and demonstrate that the influence of state preparations depends on the initial states prepared. Our results can be of interest to many topics based on quantum open systems where system-environment correlation effects have been neglected before. © 2013 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
ISSN: 10502947
DOI: 10.1103/PhysRevA.88.052107
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Oct 17, 2018


checked on Oct 9, 2018

Page view(s)

checked on Sep 14, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.