Ground state and elementary excitations of single and binary Bose-Einstein condensates of trapped dipolar gases
Abstract
We analyze the ground-state properties and the excitation spectrum of Bose-Einstein condensates of trapped dipolar particles. First, we consider the case of a single-component polarized dipolar gas. For this case we discuss the influence of the trapping geometry on the stability of the condensate as well as the effects of the dipole-dipole interaction on the excitation spectrum. We discuss also the ground state and excitations of a gas composed of two antiparallel dipolar components.
- Publication:
-
Physical Review A
- Pub Date:
- August 2002
- DOI:
- arXiv:
- arXiv:cond-mat/0203542
- Bibcode:
- 2002PhRvA..66b3613G
- Keywords:
-
- 03.75.Fi;
- 05.30.Jp;
- 32.80.Pj;
- 42.50.Vk;
- Boson systems;
- Optical cooling of atoms;
- trapping;
- Mechanical effects of light on atoms molecules electrons and ions;
- Condensed Matter
- E-Print:
- 12 pages, 9 eps figures, final version