Finite-size effects in metrology-assisted certification of quantum steering

Gabriele Bizzarri; Ilaria Gianani; Mylenne Manrique; Vincenzo Berardi; Fabio Bruni; Giovanni Capellini; Marco Barbieri

doi:10.1117/12.3027677

4 October 2024 Finite-size effects in metrology-assisted certification of quantum steering

Gabriele Bizzarri, Ilaria Gianani, Mylenne Manrique, Vincenzo Berardi, Fabio Bruni, Giovanni Capellini, Marco Barbieri

Proceedings Volume 13148, Quantum Communications and Quantum Imaging XXII; 131480E (2024) https://doi.org/10.1117/12.3027677
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

Certification of genuine quantum steering is crucial for the verification of an untrusted node in quantum networks. Yadin, Fadel and Gessner (YFG) have shown how a violation of the Cram´er-Rao bound hints the presence of quantum steering in the probe state. We recently extended the YFG method to the noisy and non-asymptotic regime. However, in such a scenario, the prior distribution encoding our prior information on the target parameter plays a fundamental role; therefore a prior distribution as reliable as possible is highly recommended. In this work we investigate the role of prior information in the parameter estimation and the certification of quantum steering via a quantum optics experiment with polarization encoding.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Gabriele Bizzarri, Ilaria Gianani, Mylenne Manrique, Vincenzo Berardi, Fabio Bruni, Giovanni Capellini, and Marco Barbieri "Finite-size effects in metrology-assisted certification of quantum steering", Proc. SPIE 13148, Quantum Communications and Quantum Imaging XXII, 131480E (4 October 2024); https://doi.org/10.1117/12.3027677

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