Giant acceleration in slow-fast space-periodic Hamiltonian systems

Abstract

Motion of an ensemble of particles in a space-periodic potential well with a weak wave-like perturbation imposed is considered. We found that slow oscillations of wavenumber of the perturbation lead to occurrence of directed particle current. This current is amplifying with time due to giant acceleration of some particles. It is shown that giant acceleration is linked with the existence of resonant channels in phase space.

References in corpus (3)

• Quasiperiodically driven ratchets for cold atoms
• Directed Chaotic Transport in Hamiltonian Ratchets
• Divergence of the Chaotic Layer Width and Strong Acceleration of the Spatial Chaotic Transport in Periodic Systems Driven by an Adiabatic ac Force

Cited by in corpus (1)

• Slowly rocking symmetric, spatially periodic Hamiltonians: The role of escape and the emergence of giant transient directed transport