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cond-mat.quant-gas2018★ 4 cited
Exact surface-wave spectrum of a dilute quantum liquid
Peter V. Pikhitsa, Uwe R. Fischer
We consider a dilute gas of bosons with repulsive contact interactions, described on the mean-field level by the Gross-Pitaevskii equation, and bounded by an impenetrable "hard" wa…
cond-mat.quant-gas2014
Exact solutions for the dispersion relation of Bogoliubov modes localized near a topological defect - a hard wall - in Bose-Einstein condensate
Peter V. Pikhitsa
We consider a Bose-Einstein condensate of bosons with repulsion, described by the Gross-Pitaevskii equation and restricted by an impenetrable "hard wall" (either rigid or flexible)…