Error Mitigated Metasurface-Based Randomized Measurement Schemes

TL;DR

This paper introduces a metasurface-based method for performing randomized quantum measurements with error mitigation, enabling more robust and resource-efficient estimation of quantum state properties in photonic systems.

Contribution

It presents a novel metasurface approach combined with error mitigation techniques for quantum measurements, enhancing robustness and efficiency.

Findings

Metasurfaces can effectively implement randomized measurements.

Error mitigation improves measurement accuracy.

The method accurately estimates quantum state properties.

Abstract

Estimating properties of quantum states via randomized measurements has become a significant part of quantum information science. In this paper, we design an innovative approach leveraging metasurfaces to perform randomized measurements on photonic qubits, together with error mitigation techniques that suppress realistic metasurface measurement noise. Through fidelity and purity estimation, we confirm the capability of metasurfaces to implement randomized measurements and the unbiased nature of our error-mitigated estimator. Our findings show the potential of metasurface-based randomized measurement schemes in achieving robust and resource-efficient estimation of quantum state properties.