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Acceleration of the chaotic and noise-induced transport in adiabatically driven spatially periodic systems

2009; American Institute of Physics; Linguagem: Inglês

10.1063/1.3140434

1935-0465

S. M. Soskin, R. Mannella, Oleg M. Yevtushenko, M. Filiasi, Massimo Macucci, Giovanni Basso,

Atomic and Subatomic Physics Research

We show that, in an ac‐driven spatially periodic Hamiltonian system, the width of the chaotic layer associated with a separatrix diverges in the adiabatic limit. A similar behaviour is observed for the layer of transient chaos in the presence of a weak dissipation. If noise is added, this mechanism may have as a conseguence that the noise‐induced transport is greatly accelerated by the adiabatic AC‐drive.