Ground-state properties of interacting two-component Bose gases in a one-dimensional harmonic trap |
| |
Authors: | Y J Hao and S Chen |
| |
Institution: | (1) Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100080, P.R. China |
| |
Abstract: | We study ground-state properties of interacting two-component boson gases in a one-dimensional harmonic trap by using the
exact numerical diagonalization method. Based on numerical solutions of many-body Hamiltonians, we calculate the ground-state
density distributions in the whole interaction regime for different atomic number ratio, intra- and inter-atomic interactions.
For the case with equal intra- and inter-atomic interactions, our results clearly display the evolution of density distributions
from a Bose condensate distribution to a Fermi-like distribution with the increase of the repulsive interaction. Particularly,
we compare our result in the strong interaction regime to the exact result in the infinitely repulsive limit which can be
obtained by a generalized Bose-Fermi mapping. We also discuss the general case with different intra- and inter-atomic interactions
and show the rich configurations of the density profiles. |
| |
Keywords: | PACS" target="_blank">PACS 03 75 Mn Multicomponent condensates spinor condensates 03 75 Hh Static properties of condensates thermodynamical statistical and structural properties 67 60 Bc Boson mixtures |
本文献已被 SpringerLink 等数据库收录! |
|