Resonant activation in a nonadiabatically driven optical lattice

Details Resonant activation in a nonadiabatically driven optical lattice Resonant activation in a nonadiabatically driven optical lattice

2005-12-21

arxiv.org/abs/cond-mat/0512552v1

Phys. Rev. Lett. 94, 143001 (2005)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevLett.94.143001

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 resonance as function of the driving frequency in the current of atoms through the periodic potential. We demonstrate that the resonance is produced by the interplay between deterministic driving and fluctuations, and we also show that by changing the frequency of the driving it is possible to control the direction of the diffusion.

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