Relaxation of the Phase in an Inhomogeneous Bose Gas
Abstract
Description
An effective action is obtained of a Bose gas in the bulk separated into two regions by a strong external potential depending on the single coordinate. The main attention is focused on the relaxation of the difference between phases of the weakly coupling condensates of the different bulk domains separated from each other by the external potential.
16 pages, RevTex; corrected some typos, added references and some acknowledgements
16 pages, RevTex; corrected some typos, added references and some acknowledgements