Regular Article - Experimental Physics
Polarimetry for measuring the vacuum magnetic birefringence with quasi-static fields: a systematics study for the VMB@CERN experiment
INFN, Sez. di Ferrara, via G. Saragat 1, Edificio C, 44122, Ferrara, Italy
2 Dip. di Fisica e Scienze della Terra, Università di Ferrara, via G. Saragat 1, Edificio C, 44122, Ferrara, Italy
3 Dip. di Scienze Fisiche, della Terra e dell’Ambiente, Università di Siena, via Roma 56, 53100, Siena, Italy
4 INFN, Sez. di Pisa, largo B. Pontecorvo 3, 56127, Pisa, Italy
5 Technical University of Liberec, Studentská 1402/2, 46117, Liberec, Czech Republic
6 School of Physics and Astronomy, Cardiff University, Queen’s Building, The Parade, CF24 3AA, Cardiff, UK
7 INFN, Laboratori Nazionali di Legnaro, viale dell’Università 2, 35020, Legnaro, PD, Italy
Accepted: 2 February 2022
Published online: 19 February 2022
We present an experimental systematics study of a 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.
© The Author(s) 2022
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