Population trapping in a Raman-coupled model interacting with a two-mode quantized cavity field

Deb, Bimalendu ; Gangopadhyay, Gautam ; Ray, Deb Shankar (1993) Population trapping in a Raman-coupled model interacting with a two-mode quantized cavity field Physical Review A, 48 (2). pp. 1400-1408. ISSN 1050-2947

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Official URL: http://pra.aps.org/abstract/PRA/v48/i2/p1400_1

Related URL: http://dx.doi.org/10.1103/PhysRevA.48.1400

Abstract

We investigate the population trapping in a Raman-coupled three-level system interacting with a pump mode and a Stokes mode in a quantized cavity. We show that with an initial atom-field decoupled state and the atomic state prepared in a coherent superposition of two nondegenerate ground states, population trapping occurs when the phase of the atomic dipole is equal to the phase difference of the two modes and the two-mode field state satisfies a specific photon distribution. In the limit of large total photon number, under some specific conditions, the corresponding two-mode trapping state can be identified as a phase difference state. We have studied the variance of superposition mode quadrature and its evolution, statistical properties, and the phase-space properties of the two-mode trapping field state. It has been observed that although under different conditions the two-mode field exhibits both sub- and super-Poissonian statistics, no squeezing is observed in any case.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:69916
Deposited On:12 Nov 2011 11:18
Last Modified:12 Nov 2011 11:18

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