493 citations · 1.6k across the 35 of their papers we have counts for
3 papers · 2 filters
The transition to chaos of coupled oscillators: An operator fidelity susceptibility study
N. Tobias Jacobson, Paolo Giorda, Paolo Zanardi
The operator fidelity is a measure of the information-theoretic distinguishability between perturbed and unperturbed evolutions. The response of this measure to the perturbation ma…
Gaussian quantum discord
Paolo Giorda, Matteo G. A. Paris
We extend the quantum discord to continuous variable systems and evaluate Gaussian quantum discord C(ρ) for bipartite Gaussian states. In particular, for squeezed thermal states (S…
The role of initial entanglement and nonGaussianity in the decoherence of photon number entangled states evolving in a noisy channel
Michele Allegra, Paolo Giorda, Matteo G. A. Paris
We address the degradation of continuous variable (CV) entanglement in a noisy channel focusing on the set of photon-number entangled states. We exploit several separability criter…