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Angular momentum exchange between coherent light and matter fields

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arxiv 0707.3698 v1 pith:CCEGSAZJ submitted 2007-07-25 cond-mat.soft

classification cond-mat.soft
keywords angularmomentumcoherenttransferanalyzedatomsbose-einsteinbragg
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Full, three dimensional, time-dependent simulations are presented demonstrating the quantized transfer of angular momentum to a Bose-Einstein condensate from a laser carrying orbital angular momentum in a Laguerre-Gaussian mode. The process is described in terms of coherent Bragg scattering of atoms from a chiral optical lattice. The transfer efficiency and the angular momentum content of the output coupled vortex state are analyzed and compared with a recent experiment.

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