187 citations · 2k across the 94 of their papers we have counts for
6 papers · 1 filter
Universal Response of Quantum Systems with Chaotic Dynamics
Diego A. Wisniacki, Natalia Ares, Eduardo Vergini
The prediction of the response of a closed system to external perturbations is one of the central problems in quantum mechanics, and in this respect, the local density of states (L…
Loschmidt Echo and the Local Density of States
Natalia Ares, Diego A. Wisniacki
Loschmidt echo (LE) is a measure of reversibility and sensitivity to perturbations of quantum evolutions. For weak perturbations its decay rate is given by the width of the local d…
Discrepancies between decoherence and the Loschmidt echo
B. Casabone, I. Garcia-Mata, D. A. Wisniacki
The Loschmidt echo and the purity are two quantities that can provide invaluable information about the evolution of a quantum system. While the Loschmidt echo characterizes instabi…
Semiclassical Description of Wavepacket Revival
F. Toscano, R. O. Vallejos, D. A. Wisniacki
We test the ability of semiclassical theory to describe quantitatively the revival of quantum wavepackets --a long time phenomena-- in the one dimensional quartic oscillator (a Ker…
A dynamical systems approach to Bohmian trajectories
F. Borondo, A. Luque, J. Villanueva +1
Vortices are known to play a key role in the dynamics of the quantum trajectories defined within the framework of the de Broglie-Bohm formalism of quantum mechanics. It has been ri…
Quantum chaotic resonances from short periodic orbits
M. Novaes, J. M. Pedrosa, D. Wisniacki +2
We present an approach to calculating the quantum resonances and resonance wave functions of chaotic scattering systems, based on the construction of states localized on classical…