Experimental Estimation of Causal Influences in the Presence of Quantum Common Cause

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/QIM.2021.Tu3A.4

Quantum Information and Measurement VI 2021
Technical Digest Series (Optica Publishing Group, 2021),
paper Tu3A.4
•https://doi.org/10.1364/QIM.2021.Tu3A.4

Experimental Estimation of Causal Influences in the Presence of Quantum Common Cause

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

Quantum Information and Measurement 2021

Washington, DC United States
1–5 November 2021
ISBN: 978-1-957171-01-2

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Entanglement-enabled Quantum Technologies II (Tu3A)

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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 Estimation of Causal Influences in the Presence of Quantum Common Cause," in Quantum Information and Measurement VI 2021, F. Sciarrino, N. Treps, M. Giustina, and C. Silberhorn, eds., Technical Digest Series (Optica Publishing Group, 2021), paper Tu3A.4.

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Abstract

The incompatibility between the quantum and classical notion of causality is a well known result in quantum theory. Using a photonic platform we show that, going beyond Bell's scenario, we can detect nonclassicality even when no violation is possible, by intervening in our experimental apparatus.

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