https://doi.org/10.1140/epjd/e2007-00221-7
Phase separation in the trapped spinor gases with anisotropic spin-spin interaction
1
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100080, P.R. China
2
Department of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan, 030006, P.R. China
Corresponding author: a schen@aphy.iphy.ac.cn
Received:
15
December
2006
Revised:
9
June
2007
Published online:
29
June
2007
We investigate the effect of the anisotropic spin-spin interaction on the ground state density distribution of the one dimensional spin-1 bosonic gases within a modified Gross-Pitaevskii theory both in the weakly interaction regime and in the Tonks-Girardeau (TG) regime. We find that for ferromagnetic spinor gas the phase separation occurs even for weak anisotropy of the spin-spin interaction, which becomes more and more obvious and the component of mF=0 diminishes as the anisotropy increases. However, no phase separation is found for anti-ferromagnetic spinor gas in both regimes.
PACS: 03.75.Mn – Multicomponent condensates; spinor condensates / 03.75.Hh – Static properties of condensates; thermodynamical, statistical, and structural properties / 67.40.Db – Quantum statistical theory; ground state, elementary excitations
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007
