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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 4 — Apr. 1, 2012
  • pp: 719–728

Quantum treatment of atom–field interaction via the quadratic invariant

M. Sebawe Abdalla, H. Eleuch, and J. Peřina  »View Author Affiliations


JOSA B, Vol. 29, Issue 4, pp. 719-728 (2012)
http://dx.doi.org/10.1364/JOSAB.29.000719


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Abstract

We introduce a new quantum treatment for the problem of the interaction between a two-level atom and field, which is expressed by the Jaynes–Cummings model. The treatment is built up on the construction of a quadratic invariant for the free-field Hamiltonian and used to reformulate the interaction term. We concentrate our study on atomic inversion as well as the phenomenon of squeezing. For the atomic inversion there is a delay during the revival period beside a period of partial collapse. The phenomenon of squeezing is also observed in the normal, the variance, and the entropy squeezing. However, the maximum value of the squeezing beside its period depends in general on the variation of the field frequency ω as well as the μ-parameter, both of which play a crucial role to control this phenomenon.

© 2012 Optical Society of America

OCIS Codes
(270.5290) Quantum optics : Photon statistics
(270.6570) Quantum optics : Squeezed states
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: September 30, 2011
Revised Manuscript: December 6, 2011
Manuscript Accepted: December 14, 2011
Published: March 20, 2012

Citation
M. Sebawe Abdalla, H. Eleuch, and J. Peřina, "Quantum treatment of atom–field interaction via the quadratic invariant," J. Opt. Soc. Am. B 29, 719-728 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-4-719

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