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Traces of Lorentz symmetry breaking in a Hydrogen atom at ground state
Some traces of a specific Lorentz symmetry breaking scenario in the ground
state of the Hydrogen atom are investigated. It is used standard
Rayleigh-Schr\"odinger perturbation theory in order to obtain the corrections
to the the ground state energy and wave function. It is shown that an induced
four-pole moment arises, due to the Lorentz symmetry breaking. The model
considered is the one studied in reference Eur. Phys. J. C {\bf 74}, 2937
(2014), where the Lorentz symmetry is broken in the electromagnetic sector.Comment: 8 Latex pages, 2 figure