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Type: 
Journal
Description: 
In the framework of the dissipative dynamics of coupled qubits interacting with independent reservoirs, a comparison between non-Markovian master equation techniques and an exact solution is presented here. We study various regimes in order to find the limits of validity of the Nakajima–Zwanzig and the time-convolutionless master equations in the description of the entanglement dynamics. A comparison between the performances of the concurrence and the negativity as entanglement measures for the system under study is also presented.
Publisher: 
IOP Publishing
Publication date: 
30 Sep 2010
Authors: 

E Ferraro, M Scala, R Migliore, A Napoli

Biblio References: 
Volume: 2010 Issue: T140 Pages: 014042
Origin: 
Physica Scripta