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Classical and quantum description of the atomic motion in superradiant light scattering from Bose-Einstein condensates

Piovella, N and Gatelli, M and Martinucci, L and Bonifacio, R and McNeill, B W J and Robb, G R M (2002) Classical and quantum description of the atomic motion in superradiant light scattering from Bose-Einstein condensates. Laser Physics, 12 (1). pp. 188-197. ISSN 1054-660X

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Abstract

A theory of coherent light scattering from an elongated Bose-Einstein condensate exposed to an off-resonant laser beam is presented. The model describes the emission of two superradiant pulses along the sample's major axis simultaneous with the formation of a bidimensional atomic grating inside the sample, as was observed in a recent MIT experiment [Inouye, S. et al., 1999, Science, 285, 571]. We predictions of the semiclassical model, in which the atomic motion is treated classically, are compared with these of the quantum model, obtained including the quantum mechanical description of the atomic motion. In the quantum limit the superradiant regime becomes a sequential process, in which during each collective scattering atoms emit a it hyperbolic secant pulse and populate an adjacent momentum state.

Item type: Article
ID code: 33765
Keywords: phase-coherent amplification, free electron laser , recoil laser, matter waves, optics, lasers, Physics, Instrumentation, Industrial and Manufacturing Engineering, Atomic and Molecular Physics, and Optics, Condensed Matter Physics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 18 Oct 2011 15:41
    Last modified: 05 Sep 2014 11:11
    URI: http://strathprints.strath.ac.uk/id/eprint/33765

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