Castaing Instability and Precessing Domains in Confined Alkali Gases

Abstract

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 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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• Stationary states of a rotating Bose-Einstein condensate: routes to vortex nucleation
• Dynamic instability of a rotating Bose-Einstein condensate
• Observation of anomalous spin-state segregation in a trapped ultra-cold vapor
• Internal state conversion in ultracold gases
• Internal waves and synchronized precession in a cold vapor
• Longitudinal spin waves in a dilute Bose gas
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Cited by in corpus (6)

• Dynamical instability of the XY spiral state of ferromagnetic condensates
• Linear spin waves in a trapped Bose gas
• Alkali Gases in Optical Lattices: A New Type of Quantum Crystals?
• Longitudinal spin diffusion in a nondegenerate trapped ${}^{87}$Rb gas
• Leggett-Rice Systems in Harmonic Traps
• Bose condensation of interacting gases in traps with and without optical lattice