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arXiv · 2602.17409

Experimental certification of ensembles of high-dimensional quantum states with independent quantum devices

Yong-Nan Sun·Meng-Yun Ma·Qi-Ping Su·Zhe Sun·Chui-Ping Yang·Franco Nori
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Abstract

When increasing the dimensionality of quantum systems, high-dimensional quantum state certification becomes important in quantum information science and technology. However, how to certify ensembles of high-dimensional quantum states in a black-box scenario remains a challenging task. In this work, we report an experimental test of certifying ensembles of high-dimensional quantum states based on prepare-and-measure experiments with \textit{independent devices}, where the state preparation device and the measurement device have no shared randomness. In our experiment, the prepared quantum states are high-dimensional orbital angular momentum states of single photons, and both the preparation fidelity and the measurement fidelity are about 99.0$\%$ for the six-dimensional quantum states. We also measure the crosstalk matrices and calculate the similarity parameter for up to ten dimensions. We not only experimentally certify the ensemble of high-dimensional quantum states in a semi-device-independent manner, but also experimentally investigate the effect of atmospheric turbulent noise on high-dimensional quantum state certification. Our experimental results clearly show that the certification of high-dimensional quantum states can still be achieved even under the influence of atmospheric turbulent noise. Our findings have potential implications in quantum certification and quantum random number generation.

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Yong-Nan Sun, Meng-Yun Ma, Qi-Ping Su, Zhe Sun, Chui-Ping Yang, Franco Nori. 2026-02-19. Experimental certification of ensembles of high-dimensional quantum states with independent quantum devices. https://doi.org/10.1103/q85z-wl38

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