2021
DOI: 10.48550/arxiv.2105.10298
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Robust Self-Testing of Multiparticle Entanglement

Dian Wu,
Qi Zhao,
Xue-Mei Gu
et al.

Abstract: Quantum self-testing is a device-independent way to certify quantum states and measurements using only the input-output statistics, with minimal assumptions about the quantum devices. Due to the high demand on tolerable noise, however, experimental self-testing was limited to two-photon systems. Here, we demonstrate the first robust self-testing for multi-particle quantum entanglement. We prepare two examples of four-photon graph states, the Greenberger-Horne-Zeilinger (GHZ) states with a fidelity of 0.957(2) … Show more

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