Chaotic ratchet dynamics with cold atoms in a pair of pulsed optical lattices

Abstract

We present a very simple model for realizing directed transport with cold atoms in a pair of periodically flashed optical lattices. The origin of this ratchet effect is explained and its robustness demonstrated under imperfections typical of cold atom experiments. We conclude that our model offers a clear-cut way to implement directed transport in an atom optical experiment.

7 pages, 7 figures

References in corpus (4)

• Quantum resonances and decoherence for delta-kicked atoms
• Quantum ratchets in dissipative chaotic systems
• Resonant nonlinear quantum transport for a periodically kicked Bose condensate
• The role of quasi-momentum in the resonant dynamics of the atom-optics kicked rotor

Cited by in corpus (16)

• Experimental Realization of Quantum-Resonance Ratchets
• Beyond mean-field dynamics in open Bose-Hubbard chains
• Rectified momentum transport for a kicked Bose-Einstein Condensate
• Proposal of a Cold-atom Realization of Quantum Maps with Hofstadter's Butterfly Spectrum
• Quantum Ratchet Accelerator without a Bichromatic Lattice Potential
• Dissipationless Directed Transport in Rocked Single-Band Quantum Dynamics
• Kicked rotor quantum resonances in position space
• Hamiltonian ratchets with ultra-cold atoms
• Many-body quantum ratchet in a Bose-Einstein condensate
• Directed deterministic classical transport: symmetry breaking and beyond
• Underdamped quantum ratchets
• Quantum Parameter Space of Dissipative Directed Transport
• Characterisation of a three-dimensional Brownian motor in optical lattices
• Transport phenomena in the asymmetric quantum multibaker map
• Quantum transport in a driven disordered potential: onset of directed current and noise-induced current reversal
• Classical properties of the leading eigenstates of quantum dissipative systems