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The transmittivity of a Bose–Einstein condensate on a lattice: interference from period doubling and the effect of disorder
We evaluate the particle current flowing in steady state through a Bose–Einstein condensate subject to a constant force in a quasi-one-dimensional lattice and to attractive interactions from fermionic atoms that are localized in various configurations inside the lattice wells. The system is treated within a Bose–Hubbard tight binding model by …