Observation of Ten-photon Entanglement Using Thin BiB$_{3}$O$_{6}$ Crystals

TL;DR

This paper demonstrates the creation of a ten-photon entangled state using thin BiB₃O₆ crystals, showcasing a significant step forward in multi-photon quantum systems for advanced quantum information applications.

Contribution

The study presents the first experimental realization of ten-photon entanglement with BiB₃O₆ crystals, highlighting their potential for scalable quantum information processing.

Findings

Achieved ten-photon Greenberger-Horne-Zeilinger state with fidelity 0.606

Verified genuine entanglement with a 3.6 sigma standard deviation

Provided statistical significance with a p-value of 3.7×10⁻³

Abstract

We report on the experimental realization of a ten-photon Greenberger-Horne-Zeilinger state using thin BiB$_{3}$O$_{6}$ crystals. The observed fidelity is $0.606\pm0.029$, demonstrating a genuine entanglement with a standard deviation of 3.6 $\sigma$. This result is further verified using $p$-value calculation, obtaining an upper bound of $3.7\times10^{-3}$ under an assumed hypothesis test. Our experiment paves a new way to efficiently engineer BiB$_{3}$O$_{6}$ crystal-based multi-photon entanglement systems, which provides a promising platform for investigating advanced optical quantum information processing tasks such as boson sampling, quantum error correction and quantum-enhanced measurement.