187 citations · 2k across the 94 of their papers we have counts for
4 papers · 1 filter
Quantum irreversibility, perturbation independent decay, and the parametric theory of the local density of states
Diego A. Wisniacki, Doron Cohen
The idea of perturbation independent decay (PID) has appeared in the context of survival-probability studies, and lately has emerged in the context of quantum irreversibility studi…
Sensitivity to perturbations in a quantum chaotic billiard
Diego A. Wisniacki, Eduardo Vergini, Horacio M. Pastawski +1
The Loschmidt echo (LE) measures the ability of a system to return to the initial state after a forward quantum evolution followed by a backward perturbed one. It has been conjectu…
Localization properties of groups of eigenstates in chaotic systems
D. A. Wisniacki, F. Borondo, E. Vergini +1
In this paper we study in detail the localized wave functions defined in Phys. Rev. Lett. {\bf 76}, 1613 (1994), in connection with the scarring effect of unstable periodic orbits…
Decoherence as Decay of the Loschmidt Echo in a Lorentz Gas
F. M. Cucchietti, H. M. Pastawski, D. A. Wisniacki
Classical chaotic dynamics is characterized by the exponential sensitivity to initial conditions. Quantum mechanics, however, does not show this feature. We consider instead the se…