Abstract
We consider a spinor Bose-Einstein condensate in its polar ground state. We analyze magnetization waves of a finite amplitude and show that their nonlinear coupling to density waves dramatically changes the dependence of the frequency on the wave number. On the contrary, the density wave propagation is much less modified by nonlinearity effects. A similar phenomenon in a miscible two-component condensate is also studied.
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From Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 122, No. 2, 2002, pp. 258–263.
Original English Text Copyright © 2002 by Mazets, Orlenko, Matisov.
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Mazets, I.E., Orlenko, E.V. & Matisov, B.G. Nonlinearity effects in wave propagation in multicomponent Bose-Einstein condensates. J. Exp. Theor. Phys. 95, 221–225 (2002). https://doi.org/10.1134/1.1506429
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DOI: https://doi.org/10.1134/1.1506429