Year: 2001
Type: article
Abstract: We investigate the low-lying excitations of a weakly interacting, harmonically trapped Bose-Einstein condensed gas under rotation, in the limit where the angular mometum L of the system is much less than the number of the atoms N in the trap. We show that in the asymptotic limit $\stackrel{\ensuremath{\rightarrow}}{N}\ensuremath{\infty}$ the excitation energy, measured from the energy of the lowest state, is given by ${27N}_{3}{(N}_{3}\ensuremath{-}{1)v}_{0}/68,$ where ${N}_{3}$ is the number of octupole excitations, and ${v}_{0}$ is the unit of the interaction energy.
Source: Physical Review A
Authors: G. M. Kavoulakis, B. Mottelson, S. M. Reimann
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1990280904