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

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

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Submission summary

Authors (as registered SciPost users): Thibault Congy · Nicolas Pavloff
Submission information
Preprint Link:  (pdf)
Date accepted: 2016-10-21
Date submitted: 2016-10-11 02:00
Submitted by: Congy, Thibault
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
  • Atomic, Molecular and Optical Physics - Theory
Approach: Theoretical


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.

Published as SciPost Phys. 1, 006 (2016)

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