Multipartite d-Level Two-Photon Cluster States and Their Entanglement Detection Via Feasible Witness Operators

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

doi:10.1364/IPRSN.2020.IW1A.5

OSA Advanced Photonics Congress (AP) 2020 (IPR, NP, NOMA, Networks, PVLED, PSC, SPPCom, SOF)
OSA Technical Digest (Optica Publishing Group, 2020),
paper IW1A.5
•https://doi.org/10.1364/IPRSN.2020.IW1A.5

Multipartite d-Level Two-Photon Cluster States and Their Entanglement Detection Via Feasible Witness Operators

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

Integrated Photonics Research, Silicon and Nanophotonics 2020

Washington, DC United States
13–16 July 2020
ISBN: 978-1-943580-79-8

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Quantum Optics (IW1A)

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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 Two-Photon Cluster States and Their Entanglement Detection Via Feasible Witness Operators," in OSA Advanced Photonics Congress (AP) 2020 (IPR, NP, NOMA, Networks, PVLED, PSC, SPPCom, SOF), L. Caspani, A. Tauke-Pedretti, F. Leo, and B. Yang, eds., OSA Technical Digest (Optica Publishing Group, 2020), paper IW1A.5.

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Abstract

We demonstrate the first multipartite d-level cluster state by using two-photon hyper-entanglement in time and frequency, and validate its genuine entanglement via a novel witness operator enabling feasible detection of any complex quantum state.

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