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A simple method to create a vortex in Bose-Einstein condensate of alkali atoms

Mikio Nakahara, Tomoya Isoshima, Kazushige Machida, Shin-ichiro Ogawa, Tetsuo Ohmi

cond-matarXiv:cond-mat/9905374

Abstract

Bose-Einstein condensation in alkali atoms has materialized quite an interesting system, namely a condensate with a spin degree of freedom. In analogy with the A-phase of the superfluid 3He, numerous textures with nonvanishing vorticity have been proposed. In the present paper, interesting properties of such spin textures are analyzed. We propose a remarkably simple method to create a vortex state of a BEC in alkali atoms.

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