2008/03/07 by Hidetsugu Seki, Kazusumi Ino · 8 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Compressibility #Condensed matter physics #Dipole #Mechanics #Particle (ecology) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Spectral line #Strong Light-Matter Interactions #Vortex #cond-mat.mes-hall
paper · pdf · doi:10.1103/physreva.77.063602
published in Physical Review A 77(6) (American Physical Society) · 11 pages, 22 figures
arxiv created 2008/03/07 · openalex publication_date 2008/06/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We numerically study the system of rapidly rotating Bose atoms at the filling factor (ratio of particle number to vortex number) \ensuremathν=1 with the dipolar interaction. A moderate dipolar interaction stabilizes the incompressible quantum liquid at \ensuremathν=1. Further addition induces a collapse of it. We show evidence that states after the collapse are compressible states which have phases with stripes and bubbles. Low-energy spectra are consistently interpreted by the presence of particle-hole excitations in which a Bose atom hops between stripes or bubbles. We also investigate models constructed from truncated interactions and the models with the three-body contact interaction. They also have phases with stripes and bubbles.