Phenomenological theory of spinor Bose-Einstein condensates

Details Phenomenological theory of spinor Bose-Einstein condensates Phenomenological theory of spinor Bose-Einstein condensates

2002-12-05

arxiv.org/abs/cond-mat/0212114v3

Phys.Rev.A 68, 025601(2003)

Physics

Condensed Matter

4 pages, 1 figure, extended discussions, added references

Scientific paper

10.1103/PhysRevA.68.025601

A phenomenological model is proposed to describe the behavior of spinor Bose-Einstein condensates. In the absence of hyperfine spin-spin interactions, Bose-Einstein condensation leads to a spontaneous magnetization at the same transition temperature. This is the so-called Bose-Einstein ferromagnetism. Including the hyperfine spin interactions, the phase diagram of the spinor condensate in an optical trap is studied and the Gross-Pitaevskii equation is extended. The possibility of checking for the existence of the Bose-Einstein ferromagnetism experimentally is also discussed.

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