Experimental Realization of Quantum-Resonance Ratchets
Atomic Physics
2008-01-20 v3 Chaotic Dynamics
Abstract
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.
Keywords
Cite
@article{arxiv.0706.0871,
title = {Experimental Realization of Quantum-Resonance Ratchets},
author = {I. Dana and V. Ramareddy and I. Talukdar and G. S. Summy},
journal= {arXiv preprint arXiv:0706.0871},
year = {2008}
}