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Vortex nucleation through edge states in finite Bose–Einstein condensates

Eric Akkermans and Sankalpa Ghosh

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We study the vortex nucleation in a finite Bose–Einstein condensate. Using a set of non-local and chiral boundary conditions to solve the Schrödinger equation of non-interacting bosons in a rotating trap, we obtain a quantitative expression for the characteristic angular velocity for vortex nucleation in a condensate which is found to be 35% of the transverse harmonic trapping frequency.


PACS

03.75.Lm Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices and topological excitations

Subjects

Quantum gases, liquids and solids

Dates

Issue 7 (14 April 2004)

Received 30 October 2003, in final form 4 February 2004

Published 24 March 2004



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