Collective Excitations of Bose-Einstein Condensates in a Double-Well Potential
Other Condensed Matter
2009-11-11 v1
Abstract
We investigate collective excitations of Bose-Einstein condensates at absolute zero in a double-well trap. We solve the Bogoliubov equations with a double-well trap, and show that the crossover from the dipole mode to the Josephson plasma mode occurs in the lowest energy excitation. It is found that the anomalous tunneling property of low energy excitations is crucial to the crossover.
Keywords
Cite
@article{arxiv.cond-mat/0508027,
title = {Collective Excitations of Bose-Einstein Condensates in a Double-Well Potential},
author = {Ippei Danshita and Kyota Egawa and Nobuhiko Yokoshi and Susumu Kurihara},
journal= {arXiv preprint arXiv:cond-mat/0508027},
year = {2009}
}
Comments
14 pages, 6 figures