Many-body theory of dilute Bose-Einstein condensates with internal degrees of freedom
- 7 December 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 63 (1) , 013601
- https://doi.org/10.1103/physreva.63.013601
Abstract
The Bogoliubov theory of weakly interacting bosons is generalized to Bose-Einstein condensates with internal degrees of freedom so that a single effective Hamiltonian produces various many-body ground states or metastable spin domains and the corresponding collective modes on an equal footing.Keywords
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