Physics – Condensed Matter – Quantum Gases
Scientific paper
2009-11-27
Physics
Condensed Matter
Quantum Gases
8 pages, 1 figure
Scientific paper
In this work, we present a systematic derivation of the distribution of eigenfrequencies for oscillations of the ground state of a repulsive Bose-Einstein condensate in the semi-classical (Thomas-Fermi) limit. Our calculations are performed in 1-, 2- and 3-dimensional settings. Connections with the earlier work of Stringari, with numerical computations, and with theoretical expectations for invariant frequencies based on symmetry principles are also given.
Kevrekidis Panagiotis G.
Pelinovsky Dmitry E.
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