Experimental Realization of Quantum-Resonance Ratchets

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Quantum-resonance ratchets associated with the periodically kicked particle are experimentally realized for the first time. This is achieved by using a Bose-Einstein condensate exposed to a pulsed standing light wave and prepared in an initial state differing from the usual plane wave. Both the standing-wave potential and the initial state have a point symmetry around some center and the ratchet arises from the non-coincidence of the two centers. The dependence of the directed quantum transport on the quasimomentum is studied. A detailed theoretical analysis is used to explain the experimental results.
Accepted for publication in Physical Review Letters (November 2007)

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Atomic Physics, Chaotic Dynamics

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http://salesiana.dossiersoluciones.com/handle/123456789/146185

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0706.0871
 http://arxiv.org/abs/0706.0871
 Physical Review Letters 100, 024103 (2008)
 doi:10.1103/PhysRevLett.100.024103

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arXiv