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Satellite meeting "Spectral Theory of Coulomb Systems - Symposion in honor of Heinz Siedentop on the occasion of his 60th birthday"
Organizers: Volker Bach (Braunschweig), Laszlo Erdös (Munich), Rupert Frank (Princeton), Simone Warzel (Munich)


Jan Derezinski (Warsaw, Poland): "Excitation spectrum of interacting bosons in the mean field infinite volume limit"
Saturday 20 April 2013, 12:00 - 12:35
Amphi Hermite


Abstract: I would like to describe recent results obtained together with M. Napiorkowski and inspired by an earlier work of R.Seiringer. We prove that the excitation spectrum of the Bose gas has the form predicted by the Bogoliubov approximation in an appropriate limit involving both the mean field and large volume approximation.