Nonclassical correlations are a fundamental resource for applications involving multipartite systems. To assess nonclassicality, several different criteria can be applied to measured data. Here we compare three inequalities by applying them to a multi-mode twin-beam state, in which one of the two parties is transmitted through a varying lossy channel. We demonstrate, both theoretically and experimentally, that the asymmetry introduced by losses affects the three criteria in different ways, thus offering a tool for quantum optics applications.

Can nonclassical correlations survive in the presence of asymmetric lossy channels?

Allevi, Alessia
;
Bondani, Maria
2018-01-01

Abstract

Nonclassical correlations are a fundamental resource for applications involving multipartite systems. To assess nonclassicality, several different criteria can be applied to measured data. Here we compare three inequalities by applying them to a multi-mode twin-beam state, in which one of the two parties is transmitted through a varying lossy channel. We demonstrate, both theoretically and experimentally, that the asymmetry introduced by losses affects the three criteria in different ways, thus offering a tool for quantum optics applications.
2018
2018
Photon statistics and coherence theory; Parametric down conversion and production of entangled photons; Photodetectors
Allevi, Alessia; Bondani, Maria
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/2075088
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