An "exceptional" magnetic sensor

Zhenhuan Yi; Girish S. Agarwal; Marlan O. Scully

doi:10.1038/s41377-025-02005-7

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An "exceptional" magnetic sensor

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- An "exceptional" magnetic sensor
- Light: Science & Applications Vol. 14, Issue 12, Pages: 3788-3789(2025)
- Affiliations：
  
  Institute for Quantum Science and Engineering, Texas A&M University, College Station, TX 77843, USA
- Author bio：
  
  Marlan O. Scully (scully@tamu.edu)
- Funds：
- DOI：10.1038/s41377-025-02005-7
  CLC：
- Published Online：11 October 2025，
  
  Published：31 December 2025
- Accepted：
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Yi, Z., Agarwal, G.S. & Scully, M.O. An "exceptional" magnetic sensor. Light: Science & Applications, 14, 3788-3789 (2025).
DOI：

Yi, Z., Agarwal, G.S. & Scully, M.O. An "exceptional" magnetic sensor. Light: Science & Applications, 14, 3788-3789 (2025). DOI： 10.1038/s41377-025-02005-7.

摘要

Abstract

Building a sensitive magnetic field sensor is non-trivial; building a more sensitive one by adding extra loss to the sensor is counterintuitive

but with innovative ideas from non-Hermitian physics like an exceptional point

a new magnetic field sensor first of its kind paves the way for broader applications of similar techniques.

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references

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Ruan, Y. P. et al. Observation of loss-enhanced magneto-optical effect. Nat. Photonics 19 , 109–115, https://doi.org/10.1038/s41566-024-01592-y (2025)..

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Nair, J. M. P., Mukhopadhyay, D. & Agarwal, G. S. Enhanced sensing of weak anharmonicities through coherences in dissipatively coupled anti-PT symmetric systems. Phys. Rev. Lett. 126 , 180401 (2021)..

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