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

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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.

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Authors and Affiliations

  1. Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100, Como, Italy

    Alessia Allevi

  2. Institute for Photonics and Nanotechnologies, CNR, Via Valleggio 11, 22100, Como, Italy

    Alessia Allevi & Maria Bondani

Authors
  1. Alessia Allevi
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  2. Maria Bondani
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Correspondence to Alessia Allevi.

Additional information

Contribution to the Topical Issue “Quantum Correlations”, edited by Marco Genovese, Vahid Karimipour, Sergei Kulik, and Olivier Pfister.

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Allevi, A., Bondani, M. Can nonclassical correlations survive in the presence of asymmetric lossy channels?. Eur. Phys. J. D 72, 178 (2018). https://doi.org/10.1140/epjd/e2018-90383-4

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  • DOI: https://doi.org/10.1140/epjd/e2018-90383-4

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