Rabi-coupling-driven motion of a soliton in a Bose-Einstein condensate
Sh. MardonovDepartment of Physical Chemistry, University of the Basque Country UPV/EHU, 48080 Bilbao, SpainM. ModugnoDepartment of Theoretical Physics and History of Science, University of the Basque Country UPV/EHU, 48080 Bilbao, SpainE. Ya. ShermanDepartment of Physical Chemistry, University of the Basque Country UPV/EHU, 48080 Bilbao, SpainBoris A. MalomedDepartment of Physical Electronics, School of Electrical Engineering, and Center for Light-Matter Interaction, Tel Aviv University, Tel Aviv 69978, Israel
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Аннотация
We study the motion of a self-attractive Bose-Einstein condensate with pseudospin $\frac{1}{2}$ driven by a synthetic Rabi (Zeeman-like) field. This field triggers the pseudospin dynamics resulting in a density redistribution between its components and, as a consequence, in changes of the overall density distribution. In the presence of an additional external potential, the latter produces a net force acting on the condensate and activates its displacement. As an example, here we consider the case of a one-dimensional condensate in a random potential.
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