Publication Date:
2016-06-08
Description:
Author(s): C.-H. Hsueh, Y.-C. Tsai, and W. C. Wu Based on mean-field Gross-Pitaevskii and Bogoliubov–de Gennes approaches, we investigate excitations of a one-dimensional soft-core interacting ultracold Bose gas under the effect of an optical lattice. It is found that no matter how deep the lattice is, at q → 0 the lowest mode corresponds to a gaple… [Phys. Rev. A 93, 063605] Published Mon Jun 06, 2016
Keywords:
Matter waves and collective properties of cold atoms and molecules
Print ISSN:
1050-2947
Electronic ISSN:
1094-1622
Topics:
Physics