Controlling the Ratchet Effect for Cold Atoms
arXiv:0708.3026 · doi:10.1103/PhysRevLett.100.044104
Abstract
Low-order quantum resonances manifested by directed currents have been realized with cold atoms. Here we show that by increasing the strength of an experimentally achievable delta-kicking ratchet potential, quantum resonances of a very high order may naturally emerge and can induce larger ratchet currents than low-order resonances, with the underlying classical limit being fully chaotic. The results offer a means of controlling quantum transport of cold atoms.
4 pages, 4 figures
References in corpus (26)
- Brownian motors: noisy transport far from equilibrium
- Directed current due to broken time-space symmetry
- Chaotic Transport and Current Reversal in Deterministic Ratchets
- Classical and Quantum Hamiltonian Ratchets
- Molecular Wires Acting as Coherent Quantum Ratchets
- Quasiperiodically driven ratchets for cold atoms
- Atomic Landau-Zener tunneling in Fourier-synthesized optical lattices
- Experimental Realization of Quantum-Resonance Ratchets
- Periodically driven Quantum Ratchets: Symmetries and Resonances
- Quantum ratchet effect for vortices
- Fourier synthesis of optical potentials for atomic quantum gases
- Rectified momentum transport for a kicked Bose-Einstein Condensate
- Ratchet effect for cold atoms in an optical lattice
- Rectification of current in ac-driven nonlinear systems and symmetry properties of the Boltzmann equation
- Observation of high-order quantum resonances in the kicked rotor
- A classical scaling theory of quantum resonances
- Experimental investigation of early-time diffusion in the quantum kicked rotor using a Bose-Einstein condensate
- Experimental observation of high-order quantum accelerator modes
- Generic Quantum Ratchet Accelerator with Full Classical Chaos
- Directed anomalous diffusion without a biased field: A ratchet accelerator
- Multi-band quantum ratchets
- General Quantum Resonances of the Kicked Particle
- Dissipationless Directed Transport in Rocked Single-Band Quantum Dynamics
- Bifurcations and sudden current change in ensembles of classically chaotic ratchets
- Current behavior of a quantum Hamiltonian ratchet in resonance
- Extended Standard Map with Spatio-Temporal Asymmetry
Cited by in corpus (21)
- Artificial Brownian motors: Controlling transport on the nanoscale
- Current Reversals and Synchronization in Coupled Ratchets
- Quantum Ratchet Accelerator without a Bichromatic Lattice Potential
- Directed momentum current induced by the PT-symmetric driving
- Ratchet Effect in the Quantum Kicked Rotor and its Destruction by Dynamical Localization
- Delicate and robust dynamical recurrences of matter waves in driven optical crystals
- Controlling heat and particle currents in nanodevices by quantum observation
- Quantum Parameter Space of Dissipative Directed Transport
- Chaos and Correspondence in Classical and Quantum Hamiltonian Ratchets: A Heisenberg Approach
- Correspondence behavior of classical and quantum dissipative directed transport via thermal noise
- On the environmental stability of quantum chaotic ratchets
- Statistical Approach to Quantum Chaotic Ratchets
- Weak-Chaos Ratchet Accelerator
- Robust Dynamical Recurrences Based on Floquet Spectrum
- Classical to quantum correspondence in dissipative directed transport
- Dynamics of kicked particles in a double-barrier structure
- Layered Chaos in Mean-field and Quantum Many-body Dynamics
- Behavior of the current in the asymmetric quantum multibaker map
- Asymmetric dynamical localization and precision measurement of BEC micromotion
- Quantum Properties of Double Kicked Systems with Classical Translational Invariance in Momentum
- Experimental demonstration of photonic quantum ratchet