61 citations · 136 across the 3 of their papers we have counts for
4 papers
Nonlinearity induced destruction of resonant tunneling in the Wannier-Stark problem
Sandro Wimberger, Riccardo Mannella, Oliver Morsch +3
We present detailed numerical results on the dynamics of a Bose-Einstein condensate in a tilted periodic optical lattice over many Bloch periods. We show that an increasing atom-at…
Resonant nonlinear quantum transport for a periodically kicked Bose condensate
Sandro Wimberger, Riccardo Mannella, Oliver Morsch +1
Our realistic numerical results show that the fundamental and higher-order quantum resonances of the delta-kicked rotor are observable in state-of-the-art experiments with a Bose c…
Divergence of the Chaotic Layer Width and Strong Acceleration of the Spatial Chaotic Transport in Periodic Systems Driven by an Adiabatic ac Force
S. M. Soskin, O. M. Yevtushenko, R. Mannella
We show for the first time that a {\it weak} perturbation in a Hamiltonian system may lead to an arbitrarily {\it wide} chaotic layer and {\it fast} chaotic transport. This {\it ge…
Macroscopic Manifestation of Microscopic Entropy Production: Space-Dependent Intermittence
Paolo Grigolini, Riccardo Mannella, Luigi Palatella
We study a spatial diffusion process generated by velocity fluctuations of intermittent nature. We note that intermittence reduces the entropy production rate while enhancing the d…