DOAJ Open Access 2025

Photonic Metrology with Hierarchic Quantum Frequentist Bounds

Xin‐Zhu Liu Yan‐Han Yang Manuel Gessner Augusto Smerzi Weidong Li +2 lainnya

Abstrak

Quantum metrology establishes fundamental precision limits for parameter estimation, yet standard Quantum Cramér‐Rao Bound (QCRB) becomes insufficient in the finite‐data regime. In this article, the QCRB is systematically tighten using a hybrid classical‐quantum framework by incorporating generalized unbiasedness constraints through test observables. These frequentist bounds form a hierarchy converging asymptotically to the QCRB as more measurements are performed. These hierarchical frequentist bounds are validated for single‐qubit phase estimation on a photonic platform.

Topik & Kata Kunci

Applied optics. Photonics Optics. Light

Penulis (7)

Xin‐Zhu Liu

Yan‐Han Yang

Manuel Gessner

Augusto Smerzi

Weidong Li

Xue Yang

Ming‐Xing Luo

Format Sitasi

APA MLA BibTeX

Liu, X., Yang, Y., Gessner, M., Smerzi, A., Li, W., Yang, X. et al. (2025). Photonic Metrology with Hierarchic Quantum Frequentist Bounds. https://doi.org/10.1002/adpr.202500199

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Informasi Jurnal

Tahun Terbit: 2025
Sumber Database: DOAJ
DOI: 10.1002/adpr.202500199
Akses: Open Access ✓