Structural instability of vortices in Bose-Einstein condensates

Preprint

12 June 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0106210

Abstract

In this paper we study a gaseous Bose-Einstein condensate (BEC) and show that: (i) A minimum value of the interaction is needed for the existence of stable persistent currents. (ii) Vorticity is not a fundamental invariant of the system, as there exists a conservative mechanism which can destroy a vortex and change its sign. (iii) This mechanism is suppressed by strong interactions.

Keywords

BOSE EINSTEIN CONDENSATES
STRUCTURAL INSTABILITY
EINSTEIN CONDENSATE
VORTICES IN BOSE
CONDENSATES
SIGN

All Related Versions

Version 1, 2001-06-12, ArXiv
Published version: Physical Review Letters, 87 (14), 140403.

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