Evolution of a Bose-Einstein condensate of neutral atoms --- A field theoretical approach

Details Evolution of a Bose-Einstein condensate of neutral atoms --- A field theoretical approach Evolution of a Bose-Einstein condensate of neutral atoms --- A field theoretical approach

1998-09-03

arxiv.org/abs/cond-mat/9809057v4

Physics

Condensed Matter

4 pages, LaTeX

Scientific paper

The particle distribution in a Bose condensate under the trapping potential and its time evolution after switching off the trapping potential suddenly are calculated. We investigate the problem from the viewpoint of quantum field theory,using a model of self-interacting neutral boson field. Within the approximation of retainng the most dominant term in the Hamiltonian after applying the Bogoliubov replacement, we can calculate analytically the particle distribution as a function of space and time coordinates.

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