Enhancement of Atom-Field Transfer of Coherence in a Two-Photon Micromaser Assisted by a Classical Field

Authors

A. F. Gomes, Fundac¸ ?ao Educacional de Barretos, C.P. 16, 14783-226, Barretos SP, Brazil\\ Centro Universitario de Rio Preto, 15025-400, S?ao Jos´e do, Rio Preto SP, Brazil
A. Vidiella-Barranco

Author Country (or Countries)

Brazil

Abstract

We investigate the transfer of coherence from atoms to a cavity field initially in a statistical mixture within a two-photon micromaser arrangement. The field is progressively modified from a maximum entropy state (thermal state) towards an almost pure state (entropy close to zero) due to its interaction with atoms sent across the cavity. We trace over the atomic variables, i.e., the atomic states are not measured and recorded by a detector after they leave the cavity. We show that by applying an external classical driving field it is possible to substantially increase the field purity without the need of previously preparing the atoms in a superposition of their energy eigenstates. We also discuss some of the nonclassical statistical properties of the resulting field.

Suggested Reviewers

N/A

Digital Object Identifier (DOI)

http://dx.doi.org/10.12785/amis/080232

Recommended Citation

F. Gomes, A. and Vidiella-Barranco, A. (2014) "Enhancement of Atom-Field Transfer of Coherence in a Two-Photon Micromaser Assisted by a Classical Field," Applied Mathematics & Information Sciences: Vol. 08: Iss. 2, Article 32.
DOI: http://dx.doi.org/10.12785/amis/080232
Available at: https://digitalcommons.aaru.edu.jo/amis/vol08/iss2/32