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arXiv:0903.3798

Study of atomic entanglement in multimode cavity optics

Saha, P., N. Nayak, A. S. Majumdar

Published Mar 23, 2009• 0 citations
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Abstract

The resonant interaction between two two-level atoms and m- electromagnetic modes in a cavity is considered. Entanglement dynamics between two atoms is examined. In particular we compare dynamical variations for different cavity modes as well as for different cavity photon numbers. The collapse and revival of entanglement is exhibited by varying the atom-photon interaction times.

DOI
10.48550/arxiv.0903.3798

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The resonant interaction between two two-level atoms and m- electromagnetic modes in a cavity is considered. Entanglement dynamics between two atoms is examined. In particular we compare dynamical variations for different cavity modes as well as for different cavity photon numbers. The collapse and revival of entanglement is exhibited by varying the atom-photon interaction times.
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A numerical calculation of entanglement dynamics between two nonresonant atoms interacting with a multimode optical cavity field has shown that the field enhances the degree of entanglement between the two atoms. Using the position of one atom of the pair as a controlling parameter, entanglement dynamics is analyzed in terms of the entanglement of formation, making a comparison with the dynamics in a single-mode cavity field. It is shown that the degree of entanglement of the present system is enhanced by the usage of multimode cavity and by positioning the atom closely at the node of the field mode.