paper

Oblique breathers generated by a flow of two-component Bose-Einstein condensate past a polarized obstacle

arXiv:1308.1194 · doi:10.1103/PhysRevLett.111.140402

Abstract

We predict that oblique breathers can be generated by a flow of two-component Bose-Einstein condensate past a polarized obstacle which attracts one component of the condensate and repels the other one. The breather exists if intra-species interaction constants differ from the inter-species interaction constant and it corresponds to the nonlinear excitation of the so-called polarization mode with domination of the relative motion of the components. Approximate analytical theory is developed for the case of small-amplitude breathers that is in reasonable agreement with the exact numerical results.

5 pages, 5 figures

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