Atomic current across an optical lattice

Abstract

We devise a microscopic model for the emergence of a collision-induced, fermionic atomic current across a tilted optical lattice. Tuning the - experimentally controllable - parameters of the microscopic dynamics allows to switch from Ohmic to negative differential conductance.

4 pages, 4 figures

References in corpus (4)

• The cold atom Hubbard toolbox
• Fermionic atoms in a 3D optical lattice: Observing Fermi-surfaces, dynamics and interactions
• Direct Observation of Sub-Poissonian Number Statistics in a Degenerate Bose Gas
• Effective magnetic fields in degenerate atomic gases induced by light beams with orbital angular momenta

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• Bloch oscillations of strongly interacting Bose atoms