Decoherence due to three-body loss and its effect on the state of a Bose-Einstein condensate

Details Decoherence due to three-body loss and its effect on the state of a Bose-Einstein condensate Decoherence due to three-body loss and its effect on the state of a Bose-Einstein condensate

2002-08-16

arxiv.org/abs/cond-mat/0208319v1

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevLett.89.140402

A Born-Markov master equation is used to investigate the decoherence of the state of a macroscopically occupied mode of a cold atom trap due to three-body loss. In the large number limit only coherent states remain pure for times longer than the decoherence time: the time it takes for just three atoms to be lost from the trap. For large numbers of atoms (N>10^4) the decoherence time is found to be much faster than the phase collapse time caused by intra-trap atomic collisions.

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