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Ground-State Properties of a Rotating Bose-Einstein Condensate with Attractive Interaction

Masahito Ueda·Anthony J. Leggett
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Abstract

The ground state of a rotating Bose-Einstein condensate with attractive interaction in a quasi-one-dimensional torus is studied in terms of the ratio $γ$ of the mean-field interaction energy per particle to the single-particle energy-level spacing. The plateaus of quantized circulation are found to appear if and only if $γ<1$ with the lengths of the plateaus reduced due to hybridization of the condensate over different angular-momentum states.

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Masahito Ueda, Anthony J. Leggett. 1999-07-16. Ground-State Properties of a Rotating Bose-Einstein Condensate with Attractive Interaction. https://doi.org/10.1103/physrevlett.83.1489

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