Mathematics Colloquia and Seminars
The Excitation Spectrum for Weakly Interacting BosonsMathematical Physics & Probability
|Speaker:||Robert Seiringer, McGill University|
|Start time:||Wed, Feb 23 2011, 4:10PM|
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.