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Thursday 30 October 2008, 14:15-15:45
Deconfinement in a 2D optical lattice of coupled 1D boson systems
- đ¤ Speaker: Dr Andrew Ho, Royal Holloway
- đ Date & Time: Thursday 30 October 2008, 14:15 - 15:45
- đ Venue: TCM Seminar Room, Cavendish Laboratory
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Joe Bhaseen
Abstract
We show that a two-dimensional (2D) array of 1D interacting boson tubes has a deconfinement transition between a 1D Mott insulator and a 3D superfluid for commensurate fillings and a dimensional crossover for the incommensurate case. We determine the phase diagram and excitations of this system and discuss the consequences for Bose condensates loaded in 2D optical lattices.
References:
Ho et al, PRL 92 ,130405 (2004)
Cazalilla et al, NJP 8 , 158 (2006)
Iucci et al PRA 73 , 041608® (2006)
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