Interspecies singlet pairing in a mixture of two spin-1 Bose condensates
- Institute of Theoretical Physics, Shanxi University, Taiyuan 030006 (China)
We study the ground-state properties of a mixture formed by two spin-1 condensates in the absence of an external magnetic field. As the collisional symmetry between interspecies bosonic atoms is broken, the interspecies coupling interaction ({beta}) and interspecies singlet-pairing interaction ({gamma}) arise. The ground state can be calculated using the angular momentum theory analytically for {gamma}=0. The full quantum approach of exact diagonalization is adopted numerically to consider the more general case as {gamma}{ne}0. We illustrate the competition between the two interspecies interactions and find that as singlet-pairing interaction dominates (or the total spin vanishes), there are still different types of singlet formations which are well determined by {beta}.
- OSTI ID:
- 21537202
- Journal Information:
- Physical Review. A, Vol. 83, Issue 2; Other Information: DOI: 10.1103/PhysRevA.83.023614; (c) 2011 American Institute of Physics; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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