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

10 Oct 2016  ·  Congy T., Kamchatnov A. M., Pavloff N. ·

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. read more

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Quantum Gases Pattern Formation and Solitons