Title:Violation of the fluctuation-dissipation theorem due to quantum finite size effects.

Abstract:In this talk I will discuss the behavior of the number fluctuations in systems far from the thermodynamic limit. I will show that, due to the finite size of the sample cell where fluctuations are measured, the deviations with respect to the fluctuation-dissipation theorem are very sensitive to the thermal and quantum correlations present in the system. Results are given for the ideal Fermi gas and for the 2D Bose gas where experiments have been recently carried out.

Speaker:Professor Sandro Stringari The CNR-INFM BEC Center and Department of Physics, University of Trento

Date: 10:30am, Feb,22, 2011

Venue:Conference Hall 322，Science Building