Abstract
In a recent article in this journal Grewal and Pattabiraman reported on the splitting of ground state Hanle resonances (recorded with linearly polarized light) by a transverse field. They claimed a “linearly proportional” dependence on the transverse field strength and supported this observation with results from numerical simulations. In this comment we argue that the splitting occurs only beyond a certain threshold field value and that it has a strong non-linearity near threshold. We base this claim on our previously published algebraic expressions for the line shapes and support this by experimental evidence.
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References
R.S. Grewal, M. Pattabiraman, Eur. Phys. J. D 70, 219 (2016)
E. Breschi, A. Weis, Phys. Rev. A 86, 053427 (2012)
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Weis, A., Shi, Y. & Grujić, Z.D. Comment on: Magnetic field measurements in Rb vapor by splitting Hanle resonances under the presence of a perpendicular scanning magnetic field. Eur. Phys. J. D 71, 80 (2017). https://doi.org/10.1140/epjd/e2017-70774-9
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DOI: https://doi.org/10.1140/epjd/e2017-70774-9