Entanglement Verification of Hyperentangled Photon Pairs

Christopher K. Zeitler, Joseph C. Chapman, Eric Chitambar, Paul G. Kwiat

Research output: Contribution to journalArticlepeer-review


We experimentally investigate the properties of hyperentangled states displaying simultaneous entanglement in multiple degrees of freedom and find that Bell tests beyond the standard Clauser-Horne-Shimony-Holt inequality can reveal a higher-dimensional nature in a device-independent way. Specifically, we show that hyperentangled states possess more than just simultaneous entanglement in separate degrees of freedom but also entanglement in a higher-dimensional Hilbert space. We also verify the steerability of hyperentangled quantum states by steering different photonic degrees of freedom.

Original languageEnglish (US)
Article number054025
JournalPhysical Review Applied
Issue number5
StatePublished - Nov 2022

ASJC Scopus subject areas

  • General Physics and Astronomy


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