"Quantum Phases of the Extended Bose-Hubbard Hamiltonian: Possibility of a Supersolid State of Cold Atoms in Optical Lattices"Vito Scarola , University of Maryland [Host: Victor Galitski]
ABSTRACT:
Cold atoms confined to optical lattices offer the unique opportunity for direct
simulation of strongly correlated models in a pristine environment. Recent
experimental progress in simulating the zero-range Bose-Hubbard model with
bosonic atoms in an optical lattice provides a direct experimental probe of the
superfluid to Mott phase transition. Another lattice model, the extended
Bose-Hubbard model, yields a rich but contested phase diagram which includes
the possibility of supersolid and density wave order. I will discuss a
specific proposal designed to extend the range of interaction in these
otherwise zero-range systems to effectively simulate an extended Bose-Hubbard
model in a cold atom optical lattice. I will also discuss potential issues
affecting experimental detection of supersolid and density wave order.
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Condensed Matter Seminar Thursday, November 17, 2005 4:00 PM Physics Building, Room 204 Note special time. Note special room. |
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