{"title":"Magnetic field measurement in a hybrid microwave optomechanical-magnetic coupled system","authors":"Zhong Ding, Yong Zhang","doi":"10.1007/s11128-024-04527-2","DOIUrl":null,"url":null,"abstract":"<div><p>This paper proposes a magnetic field measurement scheme based on a hybrid microwave optomechanical-magnetic coupled system. The proposed sensor comprises a yttrium iron garnet sphere and an optomechanical cavity, where the spring coefficient of the cavity is parametrically modulated. The results demonstrate that the system’s response to the input signal is significantly enhanced, amplifying the weak input signal while reducing the added noise of measurement below the standard quantum limit. Consequently, this hybrid system serves as an effective amplifier, generating a stronger output signal while maintaining sensitivity nearly identical to that of the bare system. We posit that these findings may offer an efficient method for magnetic field measurement and contribute to the advancement of technology in quantum precision measurements.</p></div>","PeriodicalId":746,"journal":{"name":"Quantum Information Processing","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Quantum Information Processing","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s11128-024-04527-2","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PHYSICS, MATHEMATICAL","Score":null,"Total":0}
引用次数: 0
Abstract
This paper proposes a magnetic field measurement scheme based on a hybrid microwave optomechanical-magnetic coupled system. The proposed sensor comprises a yttrium iron garnet sphere and an optomechanical cavity, where the spring coefficient of the cavity is parametrically modulated. The results demonstrate that the system’s response to the input signal is significantly enhanced, amplifying the weak input signal while reducing the added noise of measurement below the standard quantum limit. Consequently, this hybrid system serves as an effective amplifier, generating a stronger output signal while maintaining sensitivity nearly identical to that of the bare system. We posit that these findings may offer an efficient method for magnetic field measurement and contribute to the advancement of technology in quantum precision measurements.
期刊介绍：
Quantum Information Processing is a high-impact, international journal publishing cutting-edge experimental and theoretical research in all areas of Quantum Information Science. Topics of interest include quantum cryptography and communications, entanglement and discord, quantum algorithms, quantum error correction and fault tolerance, quantum computer science, quantum imaging and sensing, and experimental platforms for quantum information. Quantum Information Processing supports and inspires research by providing a comprehensive peer review process, and broadcasting high quality results in a range of formats. These include original papers, letters, broadly focused perspectives, comprehensive review articles, book reviews, and special topical issues. The journal is particularly interested in papers detailing and demonstrating quantum information protocols for cryptography, communications, computation, and sensing.
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