Error mitigated metasurface-based randomized measurement schemes

Hang Ren; Ze Zheng; Yipei Zhang; Cuifeng Ying; Lei Xu; Mohsen Rahmani; Birgitta Whaley

doi:10.1117/12.2676925

4 October 2023 Error mitigated metasurface-based randomized measurement schemes

Hang Ren, Ze Zheng, Yipei Zhang, Cuifeng Ying, Lei Xu, Mohsen Rahmani, Birgitta Whaley

Proceedings Volume PC12692, Quantum Communications and Quantum Imaging XXI; PC1269208 (2023) https://doi.org/10.1117/12.2676925
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

We propose a metasurface-based shadow tomography protocol to measure the properties of quantum states efficiently. We design Si nano-disks based metagratings that act as efficient polarizing beam splitters and can distinguish orthogonal polarizations. This allows for the measurement of all necessary quantum state observables in parallel, reducing the time needed to characterize quantum states of photonic qubits and minimizes the impact of decoherence. We validate our protocol by performing numerical simulations of a two-qubit system with metasurface as quantum detectors. We show that the protocol can accurately estimate properties of quantum states with few measurements and without reconfiguring optical setups.

Conference Presentation

Citation Download Citation

Hang Ren, Ze Zheng, Yipei Zhang, Cuifeng Ying, Lei Xu, Mohsen Rahmani, and Birgitta Whaley "Error mitigated metasurface-based randomized measurement schemes", Proc. SPIE PC12692, Quantum Communications and Quantum Imaging XXI, PC1269208 (4 October 2023); https://doi.org/10.1117/12.2676925

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