Unscrambling pixel entanglement through complex scattering channels

Mehul Malik; Will McCutcheon; Natalia Herrera Valencia; Vatshal Srivastav; Suraj Goel; Hugo Defienne; Marcus Huber; Nicolai Friis; Matej Pivoluska

doi:10.1117/12.2583622

5 March 2021 Unscrambling pixel entanglement through complex scattering channels

Mehul Malik, Will McCutcheon, Natalia Herrera Valencia, Vatshal Srivastav, Suraj Goel, Hugo Defienne, Marcus Huber, Nicolai Friis, Matej Pivoluska

Author Affiliations +

Proceedings Volume 11701, Complex Light and Optical Forces XV; 117010J (2021) https://doi.org/10.1117/12.2583622
Event: SPIE OPTO, 2021, Online Only

Abstract

High-dimensional entanglement of structured light offers the potential for noise-robust, high-capacity quantum communication protocols. However, the generation, measurement, and transport of high-quality entanglement presents some unique challenges. We demonstrate the generation and measurement of two-photon macro-pixel entanglement with a record dimensionality, quality, and measurement speed. We then discuss an experiment where we unscramble high-dimensional pixel entanglement through a commercial multimode fibre. In contrast with classical techniques, entanglement is also used to measure the transmission matrix of the fibre. Interestingly, we are able to regain entanglement without manipulating the fibre or the photon that entered it.

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Citation Download Citation

Mehul Malik, Will McCutcheon, Natalia Herrera Valencia, Vatshal Srivastav, Suraj Goel, Hugo Defienne, Marcus Huber, Nicolai Friis, and Matej Pivoluska "Unscrambling pixel entanglement through complex scattering channels", Proc. SPIE 11701, Complex Light and Optical Forces XV, 117010J (5 March 2021); https://doi.org/10.1117/12.2583622

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