AG Mathematische Physik, Arnaud Triay (LMU München): The free energy of dilute Bose gases at low temperature

Abstract: In their celebrated paper of 1957, Lee, Huang and Yang
computed the excitation spectrum of dilute Bose gases. I will talk about
a series of recent works where we justified this formula by proving an
expansion of the free energy for low temperature hence capturing the
effects of the quantum fluctuations. This is based on joint works with
S. Fournais, T. Girardot, F. Haberberger, C. Hainzl, L. Junge, L. Morin,
P.T. Nam, M. Olivieri, B. Schlein, R. Seiringer