https://doi.org/10.1140/epjp/s13360-023-04538-5
Regular Article
Minimal length corrections to magnetic birefringence in vacuum
School of Physical Sciences, Indian Association for the Cultivation of Science, 700032, Kolkata, India
a ribhupaul.rp@gmail.com, psrp2452@iacs.res.in
Received:
4
August
2023
Accepted:
27
September
2023
Published online:
10
October
2023
We consider the modification to Kruglov’s nonlinear electrodynamics in the presence of minimal length (
), by considering a specific formulation of the generalized uncertainty principle. The presence of minimal length has been motivated by several candidate theories of quantum gravity (both perturbative and non-perturbative). We show that such minimal length modifications could lead to momentum-dependent bound on zero-point electric field strength, for the aforementioned nonlinear model of electrodynamics. We further show that the existence of minimal length modifies the measure of vacuum birefringence 
in a constant and uniformly strong, external magnetic field. We, therefore, suggest the presence of a frictional mechanism of fundamental origin, acting in the parallel direction of polarization of photons (in the presence of a strong magnetic field), as an additional effect of the quantized background.
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