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Ultracold Fermions



Our lithium gas apparatus is dedicated to the study of ultracold spinor gases and fermionic gases of Lithium. We have recently predicted that ultracold spinor gases of Lithium feature strong spin-dependent interactions that lead to qualitatively new forms of bosonic magnetism and interplay between magnetism and superfluidity. We are conducting studies of such spinor gases with the aim of understanding their phase diagram and their out-of-equilibrium behavior. In collaboration with theorists, we have also predicted that spinor gases in Rubidium exhibit robust, ‘prethermalized’ states that persist in nonequilibrium conditions for extremely long durations. Our experiments seek to understand the properties of such prethermalized states and possible universal laws that govern the behavior of such states.