76 citations · 235 across the 6 of their papers we have counts for
6 papers
Resonant activation in a nonadiabatically driven optical lattice
R. Gommers, P. Douglas, S. Bergamini +3
We demonstrate the phenomenon of resonant activation in a non-adiabatically driven dissipative optical lattice with broken time-symmetry. The resonant activation results in a reson…
Rectifying fluctuations in an optical lattice
P. H. Jones, M. Goonasekera, F. Renzoni
We have realized a Brownian motor by using cold atoms in a dissipative optical lattice as a model system. In our experiment the optical potential is spatially symmetric and the tim…
Asymmetric diffusion in the delta-kicked rotor with broken symmetries
P. H. Jones, M. Goonasekera, H. E. Saunders-Singer +2
We report an experimental investigation of momentum diffusion in the delta-function kicked rotor where time symmetry is broken by a two-period kicking cycle and spatial symmetry by…
Chaotic quantum ratchets and filters with cold atoms in optical lattices: properties of Floquet states
G. Hur, C. E. Creffield, P. H. Jones +1
Recently, cesium atoms in optical lattices subjected to cycles of unequally-spaced pulses have been found to show interesting behavior: they represent the first experimental demons…
Shifting the boundaries: pulse-shape effects in the atom-optics kicked rotor
P. H. Jones, M. Goonasekera, H. E. Saunders-Singer +1
We present the results of experiments performed on cold caesium in a pulsed sinusoidal optical potential created by counter-propagating laser beams having a small frequency differe…
Directed motion for delta-kicked atoms with broken symmetries: comparison between theory and experiment
P. H. Jones, M. Goonasekera, D. R. Meacher +2
We report an experimental investigation of momentum diffusion in the delta-function kicked rotor where time symmetry is broken by a two-period kicking cycle and spatial symmetry by…