The many-body dissipative flow induced by a mobile Gaussian impurity harmonically
oscillating within a cigar-shaped Bose-Einstein condensate is investigated. For very small …

The full momentum dependence of spectrum of a point-like impurity immersed in a dilute
one-dimensional Bose gas is calculated on the mean-field level. In particular we elaborate …

We study the critical energy dissipation in an atomic superfluid gas with two symmetric spin
components by an oscillating magnetic obstacle. Above a certain critical oscillation …

We study the hydrodynamic forces acting on a small impurity moving in a two-dimensional
Bose–Einstein condensate at non-zero temperature. The condensate is modelled by the …

Abstract We employ the Gross-Pitaevskii equation to study acoustic emission generated in a
uniform Bose gas by a static impurity. The impurity excites a sound-wave packet, which …

The phenomenon of superfluidity in open Bose–Einstein condensates (BEC) is analysed
numerically and analytically. It is found that a superfluid phase is feasible above the speed …

In the study of non-equilibrium polariton condensates it is usually assumed that the
dispersion relation of polaritons is parabolic in nature. We show that considering the true …