Rotational States of Bose Gases with Attractive Interactions in Anharmonic Traps

2003/04/30 by Emil Lundh, A. Collin, Anssi Collin +2 · 2 citations
Physics and Astronomy · #Advanced Frequency and Time Standards #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat

paper · pdf · doi:10.1103/physrevlett.92.070401

published as Phys. Rev. Lett. 92, 070401 (2004) · 10 pages, 2 eps figures. Small alterations in reply to second referee report

arxiv created 2003/11/11 · openalex publication_date 2004/02/18 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A rotated and harmonically trapped Bose gas with attractive interactions is expected to either remain stationary or escape from the trap. Here we report that, on the contrary, in an anharmonic trapping potential the Bose gas with attractive interactions responds to external rotation very differently, namely, through center-of-mass motion or by formation of vortices.

Citations

• Do attractive bosons condense?
• Excited states of a dilute Bose-Einstein condensate in a harmonic trap

Cited by

• Localized matter-wave patterns with attractive interaction in rotating potentials
• Rapidly rotating Bose-Einstein condensates in anharmonic confinement