1.9k citations · 4.4k across the 99 of their papers we have counts for
8 papers · 2 filters
Qubit dynamics in a q-deformed oscillators environment
S. L'Innocente, C. Lupo, S. Mancini
We study the dynamics of one and two qubits plunged in a q-deformed oscillators environment. Specifically we evaluate the decay of quantum coherence and entanglement in time when p…
Gaussian maximally multipartite entangled states
Paolo Facchi, Giuseppe Florio, Cosmo Lupo +2
We study maximally multipartite entangled states in the context of Gaussian continuous variable quantum systems. By considering multimode Gaussian states with constrained energy, w…
Forgetfulness of continuous Markovian quantum channels
Cosmo Lupo, Laleh Memarzadeh, Stefano Mancini
The notion of forgetfulness, used in discrete quantum memory channels, is slightly weakened in order to be applied to the case of continuous channels. This is done in the context o…
Methods for Estimating Capacities and Rates of Gaussian Quantum Channels
Oleg V. Pilyavets, Cosmo Lupo, Stefano Mancini
Optimization methods aimed at estimating the capacities of a general Gaussian channel are developed. Specifically evaluation of classical capacity as maximum of the Holevo informat…
Capacities of lossy bosonic memory channels
Cosmo Lupo, Vittorio Giovannetti, Stefano Mancini
We introduce a general model for a lossy bosonic memory channel and calculate the classical and the quantum capacity, proving that coherent state encoding is optimal. The use of a…
Robustness of geometric phase under parametric noise
Cosmo Lupo, Paolo Aniello
We study the robustness of geometric phase in the presence of parametric noise. For that purpose we consider a simple case study, namely a semiclassical particle which moves adiaba…
Entanglement enhanced bit rate over multiple uses of a lossy bosonic channel with memory
Cosmo Lupo, Stefano Mancini
We present a study of the achievable rates for classical information transmission via a lossy bosonic channel with memory, using homodyne detection. A comparison with the memoryles…
Capacities of lossy bosonic channel with correlated noise
Cosmo Lupo, Oleg V. Pilyavets, Stefano Mancini
We evaluate the information capacities of a lossy bosonic channel with correlated noise. The model generalizes the one recently discussed in [Phys. Rev. A 77, 052324 (2008)], where…