Title : ( Negativity as entanglement degree of the Jaynes–Cummings model )
Authors: Seyed Javad Akhtarshenas , Mayam Farsi ,
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Abstract
In this paper, by using the notion of negativity, we study the degree of entanglement of a two-level atom interacting with a quantized radiation field, described by the Jaynes–Cummings model (JCM). We suppose that initially the field is in a pure state and the atom is in a general mixed state. In this case the negativity fully captures the entanglement of the JCM. We investigate the case that the initial state of the field is a coherent state. The influences of the detuning on the degree of entanglement are also examined.
Keywords
, Entanglement, Negativity, Mutual entropy, Jaynes-Cummings model
@article{paperid:1063032,
author = {Akhtarshenas, Seyed Javad and Mayam Farsi},
title = {Negativity as entanglement degree of the Jaynes–Cummings model},
journal = {Physica Scripta},
year = {2007},
volume = {75},
number = {5},
month = {March},
issn = {0031-8949},
pages = {608--614},
numpages = {6},
keywords = {Entanglement; Negativity; Mutual entropy; Jaynes-Cummings model},
}
%0 Journal Article
%T Negativity as entanglement degree of the Jaynes–Cummings model
%A Akhtarshenas, Seyed Javad
%A Mayam Farsi
%J Physica Scripta
%@ 0031-8949
%D 2007
