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20062009
most citedFirst-order phase transition in easy-plane quantum antiferromagnets

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cond-mat.quant-gas2009

Calculation of Drag and Superfluid Velocity from the Microscopic Parameters and Excitation Energies of a Two-Component Bose-Einstein Condensate on an Optical Lattice

Jacob Linder, Asle Sudbø

We investigate a model of a two-component Bose-Einstein condensate residing on an optical lattice. Within a Bogolioubov-approach at the mean-field level, we derive exact analytical…