Josephson effect between trapped Bose-Einstein condensates

Details Josephson effect between trapped Bose-Einstein condensates Josephson effect between trapped Bose-Einstein condensates

1997-07-14

arxiv.org/abs/cond-mat/9707143v1

Physics

Condensed Matter

4 pages, RevTex

Scientific paper

10.1103/PhysRevA.57.R28

We study the Josephson effect between atomic Bose-Einstein condensates. By drawing on an electrostatic analogy, we derive a semiclassical functional expression for the three-dimensional Josephson coupling energy in terms of the condensate density. Estimates of the capacitive energy and of the Josephson plasma frequency are also given. The effect of dissipation due to the incoherent exchange of normal atoms is analysed. We conclude that coherent Josephson dynamics may already be observable in current experimental systems.

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