Negativity as Entanglement Degree of the Jaynes-Cummings Model
Quantum Physics
2007-05-23 v2
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 for that the initial state of the field is a coherent state. The influences of the detuning on the degree of entanglement is also examined.
Keywords
Cite
@article{arxiv.quant-ph/0702101,
title = {Negativity as Entanglement Degree of the Jaynes-Cummings Model},
author = {S. J. Akhtarshenas and M. Farsi},
journal= {arXiv preprint arXiv:quant-ph/0702101},
year = {2007}
}
Comments
10 pages, 5 figures