Giant emitter magnetometer
Xiaojun Zhang, Xiang Guo, and Zhihai Wang

TL;DR
This paper proposes a novel magnetometer based on giant emitters, exploiting their frequency-dependent radiation rate and self-interference effects to achieve high sensitivity in magnetic field detection.
Contribution
It introduces a new magnetometry method utilizing giant emitters' self-interference, enhancing sensitivity over traditional small emitter-based sensors.
Findings
Achieves sensitivity of 10^{-8} to 10^{-9} T/√Hz.
Demonstrates linear variation of dissipation spectrum slope with emitter-coupling points.
Shows advantages of giant emitters in precision magnetometry.
Abstract
Leveraging the sensitive dependence of a giant atom's radiation rate on its frequency [A. F. Kockum, ., 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 , 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.
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Taxonomy
TopicsMagnetic Field Sensors Techniques
