activity
20052026
most citedOptimal estimation of losses at the ultimate quantum limit with non-Gaussian states

179 citations · 340 across the 17 of their papers we have counts for

collaborators

17 papers

quant-ph2026

Gravitational Decoherence Estimation in Optomechanical Systems

Leonardo A. M. Souza, Olimpio P. de Sá Neto, Enrico Russo +2

We develop a comprehensive quantum estimation framework to quantify how precisely gravitationally induced decoherence can be inferred in optomechanical systems, using single-mode G…

quant-ph2023★ 6 cited

Classes of Gaussian States for Squeezing Estimation

Leonardo A. M. Souza

This study explores a detailed examination of various classes of single- and two-mode Gaussian states as key elements for an estimation process, specifically targeting the evaluati…

quant-ph2019

Causal Emergence in Quantum Mechanics

Romeu Rossi, Leonardo A. M. Souza

Causal emergence is brought about when a coarse-grained description of a physical system is more effective (more deterministic and/or less degenerate) than the fine-grained corresp…

quant-ph2018

Tests of hidden variable models by the relaxation of the measurement independence condition

R. Rossi, Leonardo A. M. Souza

Bell inequalities or Bell-like experiments are supposed to test hidden variable theories based on three intuitive assumptions: determinism, locality and measurement independence. I…

quant-ph2017★ 45 cited

Versatile Gaussian probes for squeezing estimation

Luca Rigovacca, Alessandro Farace, Leonardo A. M. Souza +3

We consider an instance of black-box quantum metrology in the Gaussian framework, where we aim to estimate the amount of squeezing applied on an input probe, without previous knowl…

quant-ph2016★ 17 cited

Non-Markovianity Hierarchy of Gaussian Processes and Quantum Amplification

Pietro Liuzzo-Scorpo, Wojciech Roga, Leonardo A. M. Souza +2

We investigate dynamics of Gaussian states of continuous variable systems under Gaussianity preserving channels. We introduce a hierarchy of such evolutions encompassing Markovian,…