NDLI: Entropic uncertainty for two atoms interacting with a cavity field under the influence of two photons (off-resonance case)

Content Provider	Springer Nature Link
Author	Khalil, E. M. Abdalla, M. Sebawe
Copyright Year	2012
Abstract	In this paper, we introduce a Hamiltonian model describing the interaction of two photons with two two-level atoms and a degenerate parametric amplifier. In the near-resonance case, we obtain an analytic solution of the evolution equation for the wave function in the Schr¨odinger picture and use the obtained result for discussing the atomic inversion, the purity, and the phenomenon of squeezing. We show that the phenomenon of superstructure appears in the atomic inversion in the presence of detuning (with parameter Δ) and coupling (with parameter λ$_{3}$). Our study of the purity shows that the system is always in a mixed state, and the maximum value of entanglement occurs around ~0.6. Also we show that detuning leads to a reduction in the value of squeezing for all quadrature variances. In contrast, the coupling parameter leads to an increase in the value of squeezing. However, for the usual single-mode squeezing (of quadratures) the effect of detuning consists in increase in the squeezing period.
Starting Page	128
Ending Page	142
Page Count	15
File Format	PDF
ISSN	10712836
Journal	Journal of Russian Laser Research
Volume Number	33
Issue Number	2
e-ISSN	15738760
Language	English
Publisher	Springer US
Publisher Date	2012-06-02
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	two two-level atoms (off-resonance) atomic squeezing entanglement Optics, Optoelectronics, Plasmonics and Optical Devices Laser Technology, Photonics Microwaves, RF and Optical Engineering
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Engineering

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