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.
- Received 28 July 2000
DOI:https://doi.org/10.1103/PhysRevA.63.013601
©2000 American Physical Society
