Gauge field in ultra-cold bipartite atoms

Details Gauge field in ultra-cold bipartite atoms Gauge field in ultra-cold bipartite atoms

2006-03-25

arxiv.org/abs/cond-mat/0603684v1

Physics

Condensed Matter

Other Condensed Matter

4 pages, 1 figure

Scientific paper

The effects of entanglement and spin-spin collision on the gauge field in ultracold atoms are presented in this paper. Two gauge fields are calculated and discussed. One of the fields comes from space dependent spin-spin collisions in ultra-cold atoms, while another results from the usual Born-Oppenheimer method, which separates the center-of-mass motion from the relative motion in the two-body problem. Adiabatic conditions that lead to the key results of this paper are also presented and discussed. Entanglement shared between the two atoms is shown to affect the atomic motion. In the presence of entanglement, the additional scalar potential disappears, this is different from the case of atoms in separable states.

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