294 citations · 1.5k across the 55 of their papers we have counts for
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On Quantum Steering and Wigner Negativity
Mattia Walschaers
Quantum correlations and Wigner negativity are two important signatures of nonclassicality in continuous-variable quantum systems. In this work, we investigate how both are intertw…
Application range of crosstalk-affected spatial demultiplexing for resolving separations between unbalanced sources
Tomasz Linowski, Konrad Schlichtholz, Giacomo Sorelli +4
Superresolution is one of the key issues at the crossroads of contemporary quantum optics and metrology. Recently, it was shown that for an idealized case of two balanced sources,…
Resources for bosonic quantum computational advantage
Ulysse Chabaud, Mattia Walschaers
Quantum computers promise to dramatically outperform their classical counterparts. However, the non-classical resources enabling such computational advantages are challenging to pi…
Quantum limits for resolving Gaussian sources
Giacomo Sorelli, Manuel Gessner, Mattia Walschaers +1
We determine analytically the quantum Cramér-Rao bound for the estimation of the separation between two point sources in arbitrary Gaussian states. Our analytical expression is val…
Gaussian quantum metrology for mode-encoded parameters
Giacomo Sorelli, Manuel Gessner, Nicolas Treps +1
Quantum optical metrology aims to identify ultimate sensitivity bounds for the estimation of parameters encoded into quantum states of the electromagnetic field. In many practical…
Homodyne detection of non-Gaussian quantum steering
Carlos E. Lopetegui, Manuel Gessner, Matteo Fadel +2
Quantum correlations are at the core of current developments in quantum technologies. Certification protocols of entanglement and steering, suitable for continuous-variable non-Gau…