High-density limit of quasi-two-dimensional dipolar Bose gas
arXiv:1510.04559 · doi:10.1016/j.aop.2016.05.002
Abstract
We consider a simple model of the quasi-two-dimensional dipolar Bose gas confined in the one-dimensional square well potential. All dipoles are assumed to be oriented along the confining axis. By means of hydrodynamic approach it is shown that the general structure of the low-lying excitations can be analyzed exactly. We demonstrate that the problem significantly simplifies in the high-density limit for which the density profile in the confined direction as well as the leading-order contribution to the ground-state energy and spectrum of elementary excitations are calculated. The low-temperature result for the damping rate of the phonon mode is also presented.
7 pages, 4 figures; references added, typos corrected
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Cited by in corpus (8)
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