Dynamical control in a quasi-periodically modulated optical lattice
Department of Physics, Anadolu University - Eskisehir, Turkey
Received: 11 April 2013
Accepted: 5 August 2013
We investigate quantum tunneling phenomena for an optical lattice subjected to a bichromatic ac force. We show that incommensurability of the frequencies leads to super Bloch oscillation. We propose directed super Bloch oscillation for the quasi-periodically driven optical lattice. We study the dynamical localization and photon-assisted tunneling for a periodical and quasi-periodical ac force.
PACS: 03.75.Lm – Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations / 03.75.Kk – Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow
© EPLA, 2013