187 citations · 2k across the 94 of their papers we have counts for
3 papers · 1 filter
Quantum Speed Limit and optimal evolution time in a two-level system
P. M. Poggi, F. C. Lombardo, D. A. Wisniacki
Quantum mechanics establishes a fundamental bound for the minimum evolution time between two states of a given system. Known as the quantum speed limit (QSL), it is a useful tool i…
Quantum non-Markovian behavior at the chaos border
I. Garcia-Mata, Carlos Pineda, Diego A. Wisniacki
In this work we study the non-Markovian behaviour of a qubit coupled to an environment in which the corresponding classical dynamics change from integrable to chaotic. We show that…
Sensitivity to perturbations and quantum phase transitions
D. A. Wisniacki, A. Roncaglia
The local density of states or its Fourier transform, usually called fidelity amplitude, are important measures of quantum irreversibility due to imperfect evolution. In this Rapid…