Journal
COMMUNICATIONS IN MATHEMATICAL PHYSICS
Volume 306, Issue 2, Pages 565-578Publisher
SPRINGER
DOI: 10.1007/s00220-011-1261-6
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Funding
- U.S. National Science Foundation [PHY-0845292]
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We investigate the low energy excitation spectrum of a Bose gas with weak, long range repulsive interactions. In particular, we prove that the Bogoliubov spectrum of elementary excitations with linear dispersion relation for small momentum becomes exact in the mean-field limit.
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