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arXiv · 1607.08760

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.

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T. Congy, A. M. Kamchatnov, N. Pavloff. 2016-07-29. Dispersive hydrodynamics of nonlinear polarization waves in two-component Bose-Einstein condensates. https://doi.org/10.21468/scipostphys.1.1.006

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