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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2502.01058 |
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| _version_ | 1866912217073451008 |
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| author | Zhang, Xiaojun Guo, Xiang Wang, Zhihai |
| author_facet | Zhang, Xiaojun Guo, Xiang Wang, Zhihai |
| contents | Leveraging the sensitive dependence of a giant atom's radiation rate on its frequency [A. F. Kockum, $et~al$., Phys. Rev. A 90, 013837 (2014)], we propose an effective magnetometer model based on single giant emitter. In this model, the emitter's frequency is proportional to the applied bias magnetic field. The self-interference effect causes the slope of the dissipation spectrum to vary linearly with the number of emitter-coupling points. The giant emitter magnetometer achieves a sensitivity as high as $10^{-8}-10^{-9}\,{\rm T/\sqrt{Hz}}$, demonstrating the significant advantages of the self-interference effect compared to small emitters. We hope our proposal will expand the applications of giant emitters in precision measurement and magnetometry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_01058 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Giant emitter magnetometer Zhang, Xiaojun Guo, Xiang Wang, Zhihai Quantum Physics Leveraging the sensitive dependence of a giant atom's radiation rate on its frequency [A. F. Kockum, $et~al$., Phys. Rev. A 90, 013837 (2014)], we propose an effective magnetometer model based on single giant emitter. In this model, the emitter's frequency is proportional to the applied bias magnetic field. The self-interference effect causes the slope of the dissipation spectrum to vary linearly with the number of emitter-coupling points. The giant emitter magnetometer achieves a sensitivity as high as $10^{-8}-10^{-9}\,{\rm T/\sqrt{Hz}}$, demonstrating the significant advantages of the self-interference effect compared to small emitters. We hope our proposal will expand the applications of giant emitters in precision measurement and magnetometry. |
| title | Giant emitter magnetometer |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2502.01058 |