New bloch period for interacting cold atoms in 1D optical lattices.
This paper studies Bloch oscillations of ultracold atoms in an optical lattice, in the presence of atom-atom interactions. A new, interaction-induced Bloch period is identified. Analytical results are corroborated by realistic numerical calculations.
Kolovsky
Andrey R
AR
Max-Planck-Institut für Physik Komplexer Systeme, D-01187 Dresden, Germany.