2002/12/31 by Uwe R. Fischer, П. О. Федичев, Petr O. Fedichev +1
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Physics of Superconductivity and Magnetism #Strong Light-Matter Interactions #cond-mat.mes-hall
paper · pdf · doi:10.1088/0953-4075/37/7/074
published as J. Phys. B 37, S301-S310 (2004) · 11 pages, 3 figures; to appear in J. Phys. B
arxiv created 2004/02/19 · openalex publication_date 2004/03/24 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
We discuss the feasibility of quantum Hall states of vortices in trapped low-density two-dimensional Bose gases with large particle interactions. For interaction strengths larger than a critical dimensionless 2D coupling constant g c ≈ 0.6, upon increasing the rotation frequency, the system is shown to spatially separate into vortex lattice and melted vortex lattice (vortex liquid) phases. At a first critical frequency, the lattice melts completely, and strongly correlated vortex and particle quantum Hall liquids coexist in inner and outer regions of the gas cloud, respectively. Finally, at a second critical frequency, the vortex liquid disappears and the strongly correlated particle quantum Hall state fills the whole sample.