Open AccessGround state of a two-component dipolar Bose-Einstein condensate confined in a coupled annular potential
Author(s) -
Xiaofei Zhang,
Pei Zhang,
Guangping Chen,
Biao Dong,
Ren-Bing Tan,
Shougang Zhang
Publication year - 2015
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.64.060302
Subject(s) - dipole , ground state , bose–einstein condensate , physics , component (thermodynamics) , phase (matter) , condensed matter physics , atomic physics , quantum mechanics
By using the imaginary-time propagation method, we study the ground state structure of a two-component dipolar Bose-Einstein condensate confined in a coupled annular potential. The effects of contact and dipole-dipole interaction on the ground state density distribution of such a system are investigated in detail. The results show that the dipole-dipole interaction, acting as a new degree of freedom, can be used to obtain the desired ground state phases, and to control the phase transition between different ground states.