Dispersive hydrodynamics of nonlinear polarization waves in two-component Bose-Einstein condensates

T. Congy, A. M. Kamchatnov, N. Pavloff

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Abstract

We study one dimensional mixtures of two-component Bose-Einstein condensates in the limit where the intra-species and inter-species interaction constants are very close. Near the mixing-demixing transition the polarization and the density dynamics decouple. We study the nonlinear polarization waves, show that they obey a universal (i.e., parameter free) dynamical description, identify a new type of algebraic soliton, explicitly write simple wave solutions, and study the Gurevich-Pitaevskii problem in this context.
Original languageEnglish
Article number7
Number of pages30
JournalSciPost Physics
Volume1
Issue number1
Early online date25 Oct 2016
DOIs
Publication statusPublished - Oct 2016
Externally publishedYes

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