"SuperfluidInsulator Transition in a Moving System of Interacting Bosons"Anatoli Polkovnikov , Harvard University [Host: Paul Fendley]
ABSTRACT:
Cold atomic systems with their high tunability and nearly perfect isolation from environment became very attractive for studying strongly correlated systems. Particularly exciting is the possibility to address problems of quantum dynamics far from
equilibrium, which are beyond the reach of conventional condensed matter systems. Most of theoretical studies of dynamics in these systems
employ essentially classical (GrossPitaevskii) equations of motion. At the same time in quilibrium a lot is known about various quantum
regimes, where the classical description does not work. In this talk I will discuss a problem where both quantum and dynamic effects are important. In particular, I will describe a moving system of interacting bosons in a periodic optical lattice
potential and generalize the conventional superfluidMott insulator transition to this
highly nonequilibrium situation. I will discuss implications of our results to recent and future
experiments.

Condensed Matter Seminar Thursday, January 27, 2005 4:00 PM Physics Building, Room 204 Note special time. Note special room. 
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