88 citations · 124 across the 10 of their papers we have counts for
4 papers · 1 filter
Quantum versus Classical Dynamics in a driven barrier: the role of kinematic effects
P. K. Papachristou, E. Katifori, F. K. Diakonos +2
We study the dynamics of the classical and quantum mechanical scattering of a wave packet from an oscillating barrier. Our main focus is on the dependence of the transmission coeff…
Hyperacceleration in a stochastic Fermi-Ulam model
A. K. Karlis, P. K. Papachristou, F. K. Diakonos +2
Fermi acceleration in a Fermi-Ulam model, consisting of an ensemble of particles bouncing between two, infinitely heavy, stochastically oscillating hard walls, is investigated. It…
Lyapunov Instability versus Relaxation Time in two Coupled Oscillators
P. K. Papachristou, E. Mavrommatis, V. Constantoudis +2
We consider the relation between relaxation time and the largest Lyapunov exponent in a system of two coupled oscillators, one of them being harmonic. It has been found that in a r…
Nonperiodic delay mechanism in time-dependent chaotic scattering
P. Papachristou, F. K. Diakonos, E. Mavrommatis +1
We study the occurence of delay mechanisms other than periodic orbits in systems with time dependent potentials that exhibit chaotic scattering. By using as model system two harmon…