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Content Provider | IEEE Xplore Digital Library |
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Author | Fallani, L. Fort, C. Cataliotti, F.S. Inguscio, M. |
Copyright Year | 2003 |
Description | Author affiliation: Firenze Univ., Sesto Fiorentino, Italy (Fallani, L.; Fort, C.; Cataliotti, F.S.; Inguscio, M.) |
Abstract | The non-equilibrium dynamics of the superradiant scattering of light from a BEC is experimentally investigated by monitoring the time evolution of the population in the condensate. In the experiment, a cigar-shaped Bose-Einstein condensate of /sup 87/Rb atoms is produced and is exposed to a single off-resonant laser pulse directed along the condensate symmetry axis. The superradiant back-scattering of light creates a matter wave pulse moving in the same direction of the laser beam at twice the photon recoil velocity with respect to the original condensate. The efficiency of the process is limited by decoherence between the two atomic spatially overlapped wavepackets. The temporal evolution of the condensate observed in the experiment as well as the results of a simple semiclassical model in which the condensate is described by a density operator for the motional states. The population of the two matter wavepackets as a function of the light pulse duration is reported, together with the experimental points with the analytical formula resulting from the theory of collective atomic recoil laser (CARL). |
File Size | 95575 |
File Format | |
ISBN | 0780377338 |
DOI | 10.1109/EQEC.2003.1314142 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2003-06-22 |
Publisher Place | Germany |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Light scattering Atomic beams Optical pulses Atom lasers Laser modes Particle scattering Monitoring Matter waves Laser beams Laser theory |
Content Type | Text |
Resource Type | Article |
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