Multipartite d-level photon cluster states and practical entanglement detection through witness operators

Stefania Sciara; Christian Reimer; Piotr Roztocki; David J. Moss; Lucia Caspani; William J. Munro; Michael Kues; Roberto Morandotti; Roberto Morandotti

doi:10.1364/CLEO_QELS.2021.FM1N.3

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper FM1N.3
•https://doi.org/10.1364/CLEO_QELS.2021.FM1N.3

Multipartite d-level photon cluster states and practical entanglement detection through witness operators

Stefania Sciara, Christian Reimer, Piotr Roztocki, David J. Moss, Lucia Caspani, William J. Munro, Michael Kues, and Roberto Morandotti

CLEO: QELS_Fundamental Science 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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High-Dimensional Entanglement (FM1N)

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S. Sciara, C. Reimer, P. Roztocki, D. J. Moss, L. Caspani, W. J. Munro, M. Kues, and R. Morandotti, "Multipartite d-level photon cluster states and practical entanglement detection through witness operators," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper FM1N.3.

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Abstract

We develop witness operators enabling the practical detection of arbitrary complex photon states and apply them to validate the entanglement of the first multipartite d-level cluster state achieved through simultaneous time- and frequency-entanglement.

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