Noise-Resilient Quantum Metrology with Quantum Computing

• URL: http://arxiv.org/abs/2509.00771v2
• Date: Wed, 05 Nov 2025 08:38:03 GMT
• Title: Noise-Resilient Quantum Metrology with Quantum Computing
• Authors: Xiangyu Wang, Chenrong Liu, Xue Lin, Yu Tian, Yishan Li, Xinfang Nie, Yufang Feng, Yuxuan Zheng, Ying Dong, Xinqing Wang, Dawei Lu,
• Abstract summary: We propose an alternative strategy that shifts the focus from classical data encoding to directly processing quantum data.<n>We develop an experimentally feasible scheme in which a quantum computer optimize information acquired from quantum metrology.<n>Our results show that this method improves the accuracy of sensing estimates and significantly boosts sensitivity, as quantified by the quantum Fisher information.
• Score: 10.243775711846629
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Quantum computing has made remarkable strides in recent years, as demonstrated by quantum supremacy experiments and the realization of high-fidelity, fault-tolerant gates. However, a major obstacle persists: practical real-world applications remain scarce, largely due to the inefficiency of loading classical data into quantum processors. Here, we propose an alternative strategy that shifts the focus from classical data encoding to directly processing quantum data. We target quantum metrology, a practical quantum technology whose precision is often constrained by realistic noise. We develop an experimentally feasible scheme in which a quantum computer optimizes information acquired from quantum metrology, thereby enhancing performance in noisy quantum metrology tasks and overcoming the classical-data-loading bottleneck. We demonstrate this approach through experimental implementation with nitrogen-vacancy centers in diamond and numerical simulations using models of distributed superconducting quantum processors. Our results show that this method improves the accuracy of sensing estimates and significantly boosts sensitivity, as quantified by the quantum Fisher information, thus offering a new pathway to harness near-term quantum computers for realistic quantum metrology.

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