title: Gating ratchet for cold atoms.
abstract: We demonstrate experimentally a gating ratchet with cold rubidium atoms in a driven near-resonant optical lattice. A single-harmonic periodic modulation of the optical potential depth is applied, together with a single-harmonic rocking force. Directed motion is observed as a result of the breaking of the symmetries of the system.
authors: Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors: R
authors: R
authors: Gommers
authors: V
authors: V
authors: Lebedev
authors: M
authors: M
authors: Brown
authors: F
authors: F
authors: Renzoni