Experimental test of quantum causal influences within an instrumental process

Iris Agresti; Davide Poderini; Beatrice Polacchi; Nikolai Miklin; Nikolai Miklin; Mariami Gachechiladze; Alessia Suprano; Emanuele Polino; Giorgio Milani; Gonzalo Carvacho; Rafael Chaves; Fabio Sciarrino

doi:10.1364/CLEO_QELS.2022.FTh5O.6

Conference on Lasers and Electro-Optics
Technical Digest Series (Optica Publishing Group, 2022),
paper FTh5O.6
•https://doi.org/10.1364/CLEO_QELS.2022.FTh5O.6

Experimental test of quantum causal influences within an instrumental process

Iris Agresti, Davide Poderini, Beatrice Polacchi, Nikolai Miklin, Mariami Gachechiladze, Alessia Suprano, Emanuele Polino, Giorgio Milani, Gonzalo Carvacho, Rafael Chaves, and Fabio Sciarrino

CLEO: QELS_Fundamental Science 2022

San Jose, California United States
15–20 May 2022
ISBN: 978-1-957171-05-0

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I. Agresti, D. Poderini, B. Polacchi, N. Miklin, M. Gachechiladze, A. Suprano, E. Polino, G. Milani, G. Carvacho, R. Chaves, and F. Sciarrino, "Experimental test of quantum causal influences within an instrumental process," in Conference on Lasers and Electro-Optics, Technical Digest Series (Optica Publishing Group, 2022), paper FTh5O.6.

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Abstract

We implement a binary-variable instrumental scenario on a photonic setup. Despite no Bell-like inequality exists for this model, we detect non-classical correlations by quantifying causal influences, which allows demonstrating discrepancies between quantum and classical predictions.

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