Quantum entanglement measures Earth’s rotation

IF 32.3 1区物理与天体物理 Q1 OPTICS

Nature Photonics Pub Date : 2024-08-05 DOI:10.1038/s41566-024-01490-3

Giampaolo Pitruzzello

引用次数: 0

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量子纠缠测量地球自转

干涉测量法是检验物理理论和进行测量的最灵敏技术之一。其中，基于萨格纳克效应的光环干涉仪常用于测量旋转，但其性能受到射噪限制。成功的关键在于采用了双光子量子 N00N 状态，即两个光子处于一种状态的叠加态。众所周知，这种状态具有特别高的相位灵敏度，因此对量子干涉测量中的精确测量非常有价值。在这种情况下，这些态是由以 1546 纳米为中心的水平和垂直偏振光子对的乘积态产生的，并在极化 KTiOPO4 非线性光学晶体中通过自发参量下变频产生。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Photonics 物理-光学

CiteScore

54.20

自引率

1.70%

发文量

158

审稿时长

12 months

期刊介绍： Nature Photonics is a monthly journal dedicated to the scientific study and application of light, known as Photonics. It publishes top-quality, peer-reviewed research across all areas of light generation, manipulation, and detection. The journal encompasses research into the fundamental properties of light and its interactions with matter, as well as the latest developments in optoelectronic devices and emerging photonics applications. Topics covered include lasers, LEDs, imaging, detectors, optoelectronic devices, quantum optics, biophotonics, optical data storage, spectroscopy, fiber optics, solar energy, displays, terahertz technology, nonlinear optics, plasmonics, nanophotonics, and X-rays. In addition to research papers and review articles summarizing scientific findings in optoelectronics, Nature Photonics also features News and Views pieces and research highlights. It uniquely includes articles on the business aspects of the industry, such as technology commercialization and market analysis, offering a comprehensive perspective on the field.