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Thursday, March 31, 2011
2:00 PM - 3:00 PM
CNLS Conference Room (TA-3, Bldg 1690)

Postdoc Seminar

Novel Polaron State for Single Impurity in a Bosonic Mott Insulator

Yasuyuki Kato
T-4 and CNLS

We show that a single impurity embedded in a bosonic Mott insulator is a novel polaron that exhibits correlated motion with an effective mass and a linear size that diverge near a critical value of the on-site impurity-boson interaction strength by analytical calculations as well as numerical calculations. We show that this system can be realized and controlled in cold atom optical lattices.

Host: Peter Loxley, loxley@lanl.gov