Abstract The yrast spectrum for the harmonically trapped two-component Bose-Einstein condensate (BEC), omitting the difference between the two components, has been studied using an analytical method. The energy eigenstates and eigenvalues for L=0,1,2,3 are given. We illustrate that there are different eigenstate behaviours between the even L and odd L cases for the two-component BEC in two dimensions. Except for symmetric states, there are antisymmetric states for the permutation of the two components, which cannot reduce to those in a single condensate case when the value of L is odd.
Received: 19 July 2001
Revised: 19 September 2001
Accepted manuscript online:
PACS:
03.75.Mn
(Multicomponent condensates; spinor condensates)
Cite this article:
Xie Bing-Hao (解炳昊), Jing Hui (景辉) Analytical method for yrast line states in the interacting two-component Bose-Einstein condensate 2002 Chinese Physics 11 115
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