Nanoradian-Scale Precision in Light Rotation Measurement via Indefinite Quantum Dynamics

Fuente: arXiv
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Main Authors: Xia, Binke, Huang, Jingzheng, Li, Hongjing, Luo, Zhongyuan, Zeng, Guihua
Format: Preprint
Published: 2023
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author Xia, Binke
Huang, Jingzheng
Li, Hongjing
Luo, Zhongyuan
Zeng, Guihua
author_facet Xia, Binke
Huang, Jingzheng
Li, Hongjing
Luo, Zhongyuan
Zeng, Guihua
contents The manipulation and metrology of light beams are pivotal for optical science and applications. In particular, achieving ultra-high precision in the measurement of light beam rotations has been a long-standing challenge. Instead of utilizing quantum probes like entangled photons, we address this challenge by incorporating a quantum strategy called "indefinite time direction" into the parameterizing process of quantum parameter estimation. Leveraging this quantum property of the parameterizing dynamics allows us to maximize the utilization of OAM resources for measuring ultra-small angular rotations of beam profile. Notably, a nanoradian-scale precision of light rotation measurement is finally achieved in the experiment, which is the highest precision by far to our best knowledge. Furthermore, this scheme holds promise in various optical applications due to the diverse range of manipulable resources offered by photons.
format Preprint
id arxiv_https___arxiv_org_abs_2310_07125
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Nanoradian-Scale Precision in Light Rotation Measurement via Indefinite Quantum Dynamics
Xia, Binke
Huang, Jingzheng
Li, Hongjing
Luo, Zhongyuan
Zeng, Guihua
Quantum Physics
Optics
The manipulation and metrology of light beams are pivotal for optical science and applications. In particular, achieving ultra-high precision in the measurement of light beam rotations has been a long-standing challenge. Instead of utilizing quantum probes like entangled photons, we address this challenge by incorporating a quantum strategy called "indefinite time direction" into the parameterizing process of quantum parameter estimation. Leveraging this quantum property of the parameterizing dynamics allows us to maximize the utilization of OAM resources for measuring ultra-small angular rotations of beam profile. Notably, a nanoradian-scale precision of light rotation measurement is finally achieved in the experiment, which is the highest precision by far to our best knowledge. Furthermore, this scheme holds promise in various optical applications due to the diverse range of manipulable resources offered by photons.
title Nanoradian-Scale Precision in Light Rotation Measurement via Indefinite Quantum Dynamics
topic Quantum Physics
Optics
url https://arxiv.org/abs/2310.07125