Depletion of a Bose-Einstein condensate by laser-iduced dipole-dipole interactions
arXiv:cond-mat/0310672 · doi:10.1088/0953-4075/37/7/061
Abstract
We study a gaseous Bose-Einstein condensate with laser-induced dipole-dipole interactions using the Hartree-Fock-Bogoliubov theory within the Popov approximation. The dipolar interactions introduce long-range atom-atom correlations, which manifest themselves as increased depletion at momenta similar to that of the laser wavelength, as well as a "roton" dip in the excitation spectrum. Surprisingly, the roton dip and the corresponding peak in the depletion are enhanced by raising the temperature above absolute zero.
10 pages, 6 figures
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Cited by in corpus (17)
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- Radial and angular rotons in trapped dipolar gases
- Anisotropic solitons in dipolar Bose-Einstein Condensates
- Solitons in quasi one-dimensional Bose-Einstein condensates with competing dipolar and local interactions
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- Dipolar and spinor bosonic systems
- Heating a dipolar quantum fluid into a solid
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- Collapse instability of solitons in the nonpolynomial Schrödinger equation with dipole-dipole interactions
- Effects of Long-Range Nonlinear Interactions in Double-Well Potentials