Session A2 - Degenerate Gases.
INVITED session, Monday morning, March 22
517B, Palais des Congres
Experiments with ultra cold atoms highlight new questions in strongly correlated systems. One problem is how to detect many body correlations. We propose to utilize atomic noise in the image of an expanding gas cloud to probe complex many body states of trapped ultra cold atoms. In particular we show how this technique can be used to detect superfluidity of fermionic gases and spin ordered states of multi-component bosons. We also discuss the phase diagram and dynamics of two component bosons on an optical lattice. Specifically, spin correlations are shown to modify the nature of the superfluid to insulator transition.