Quantum jumps in a coherently driven Raman system

Agarwal, G. S. ; Lawande, S. V. ; D'Souza, Richard (1988) Quantum jumps in a coherently driven Raman system Physical Review A, 37 (2). pp. 444-449. ISSN 1050-2947

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Official URL: http://pra.aps.org/abstract/PRA/v37/i2/p444_1

Related URL: http://dx.doi.org/10.1103/PhysRevA.37.444


Early results of Agarwal and Jha [Z. Phys. B 35, 391 (1979)] are used to examine the question of quantum jumps in a Raman (Λ) system driven by two coherent fields. We discuss both short-time (γ1t≲1) and long-time (γ2t≊1) behavior of the intensity correlations assuming that the Stokes transition is very weak, γ2≪γ1. We calculate the counting statistics of the dark periods using the higher-order intensity correlations. The results differ from those obtained using arguments based on population trapping which predict only a very rare "jump" event. The intermittence in fluorescence produced by a coherently driven Λ system is interpreted in terms of an equivalent two-state Markov process.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:78980
Deposited On:23 Jan 2012 14:51
Last Modified:23 Jan 2012 14:51

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