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arXiv · 2110.03943

Polarimetry for measuring the vacuum magnetic birefringence with quasi-static fields: a systematics study for the VMB@CERN experiment

G. Zavattini·F. Della Valle·A. M Soflau·L. Formaggio·G. Crapulli·G. Messineo·E. Mariotti·S. Kunc·A. Ejlli·G. Ruoso·C. Marinelli·M. Andreotti
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Abstract

We present an experimental systematics study of the polarimetric method for measuring the vacuum magnetic birefringence based on a pair of rotating half-wave plates. The presence of a systematic effect at the same frequency as the sought for magneto-optical effect inhibits the use of strictly constant magnetic fields. We characterise this systematic, discuss its origin and propose a viable workaround.

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G. Zavattini, F. Della Valle, A. M Soflau, L. Formaggio, G. Crapulli, G. Messineo, E. Mariotti, S. Kunc, A. Ejlli, G. Ruoso, C. Marinelli, M. Andreotti. 2021-10-08. Polarimetry for measuring the vacuum magnetic birefringence with quasi-static fields: a systematics study for the VMB@CERN experiment. https://doi.org/10.1140/epjc%2Fs10052-022-10100-x

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