Genuine high-dimensional quantum steering

Mehul Malik; Vatshal Srivastav; Natalia Herrera Valencia; Will McCutcheon; Sébastien Designolle; Roope Kristian Uola; Nicolas Brunner

doi:10.1117/12.2590191

5 March 2021 Genuine high-dimensional quantum steering

Mehul Malik, Vatshal Srivastav, Natalia Herrera Valencia, Will McCutcheon, Sébastien Designolle, Roope Kristian Uola, Nicolas Brunner

Author Affiliations +

Proceedings Volume 11700, Optical and Quantum Sensing and Precision Metrology; 117001H (2021) https://doi.org/10.1117/12.2590191
Event: SPIE OPTO, 2021, Online Only

Abstract

High-dimensional entanglement can give rise to stronger forms of nonlocal correlations compared to qubit systems. Beyond being of fundamental interest, this offers significant advantages for quantum information processing. The problem of certifying these stronger correlations, however, remains an important challenge. Here we theoretically formalise and experimentally demonstrate a notion of genuine high-dimensional quantum steering. We show that high-dimensional entanglement combined with judiciously chosen local measurements can lead to a stronger form of steering, provably impossible to obtain via entanglement in lower dimensions. Exploiting the connection between steering and incompatibility of quantum measurements, we derive two-setting inequalities for certifying the presence of genuine high-dimensional steering. We report the experimental violation of these inequalities using macro-pixel photon-pair entanglement certifying genuine high-dimensional steering in dimensions up to 15.

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Citation Download Citation

Mehul Malik, Vatshal Srivastav, Natalia Herrera Valencia, Will McCutcheon, Sébastien Designolle, Roope Kristian Uola, and Nicolas Brunner "Genuine high-dimensional quantum steering", Proc. SPIE 11700, Optical and Quantum Sensing and Precision Metrology, 117001H (5 March 2021); https://doi.org/10.1117/12.2590191

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