4 papers
Nonadiabatic pumping in classical and quantum chaotic scatterers
A. Castañeda, T. Dittrich, G. Sinuco
We study directed transport in periodically forced scattering systems in the regime of fast and strong driving where the dynamics is mixed to chaotic and adiabatic approximations d…
Semiclassical propagation of Wigner functions
Thomas Dittrich, Edgar A. Gomez, Leonardo A. Pachon
We present a comprehensive study of semiclassical phase-space propagation in the Wigner representation, emphasizing numerical applications, in particular as an initial-value repres…
Floquet-Markov description of the parametrically driven, dissipative harmonic quantum oscillator
Sigmund Kohler, Thomas Dittrich, Peter Hänggi
Using the parametrically driven harmonic oscillator as a working example, we study two different Markovian approaches to the quantum dynamics of a periodically driven system with d…
Tunneling And The Onset Of Chaos In A Driven Bistable System
R. Utermann, T. Dittrich, P. Hanggi
We study the interplay between coherent transport by tunneling and diffusive transport through classically chaotic phase-space regions, as it is reflected in the Floquet spectrum o…