Castaing Instability and Precessing Domains in Confined Alkali Gases

Details Castaing Instability and Precessing Domains in Confined Alkali Gases Castaing Instability and Precessing Domains in Confined Alkali Gases

2002-02-05

arxiv.org/abs/cond-mat/0202072v1

Physics

Condensed Matter

Soft Condensed Matter

6 RevTex pages, no figures

Scientific paper

We explore analogy between two-component quantum alkali gases and spin-polarized helium systems. Recent experiments in trapped gases are put into the frame of the existing theory for Castaing instability in transverse channel and formation of homogeneous precessing domains in spin-polarized systems. Analogous effects have already been observed in spin-polarized $% ^{3}He$ and $^{3}He- ^{4}He$ mixtures systems. The threshold effect of the confining potential on the instability is analyzed. New experimental possibilities for observation of transverse instability in a trap are discussed.

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