2005/03/22 by Li-Hua Lu, Li-Hua Lü, You‐Quan Li +1
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions #cond-mat.mes-hall
paper · pdf · doi:10.2478/s11534-006-0013-2
published as Central European J. Phys. 4(3), 299-309 (2006) · Revtex, 5 pages, 2 figures
arxiv created 2005/03/22 · openalex publication_date 2006/06/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Abstract We study a rapidly rotating Bose-Einstein condensate in anharmonic confinement and find that many properties, such as the critical rotating frequency and phase diagram, are different from those in a harmonic trap. We investigate the phase transitions between various vortex lattices and find that a hole emerges in the center of the cloud when the rotating frequency Θ reaches Θh but it becomes invisible when Θ > 1.0842ω ⊥.