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SUMMARY:Two-Component Bosons in state-dependent optical lattices - Daniel 
 Pertot (Dept of Physics\, Stony Brook Univeristy)
DTSTART:20101116T110000Z
DTEND:20101116T120000Z
UID:TALK28006@talks.cam.ac.uk
CONTACT:6270
DESCRIPTION:I will present our recent experiments with binary hyperfine-st
 ate mixtures of Rb-87 in a three-dimensional optical lattice with state de
 pendence along one axis. We have studied how the transition of one\ncompon
 ent from superfluid to Mott-insulator is affected by the presence and the 
 properties of a second\, tunable 'background' component. We interpret our 
 findings in terms of a polaron-like dressing and the\nformation of a quant
 um emulsion. Further\, I will discuss our observation of four-wave mixing 
 of macroscopically populated two-component matter\nwaves in a collinear ge
 ometry. With its particular combination of internal and external states\, 
 this system lends itself to possible applications in the context of quantu
 m atom optics. Finally\, I will talk\nabout our most recent work\, matter-
 wave scattering from a dilute atomic crystal.
LOCATION:Rutherford building\, Seminar Room B
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