Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-09-03
Phys.Lett.B671:280-283,2009
Physics
High Energy Physics
High Energy Physics - Theory
11 pages, Latex
Scientific paper
10.1016/j.physletb.2008.12.029
We study a number of issues related to the emission and absorption radiation by non-relativistic electrons within the framework of a Lorentz-breaking electrodynamics in (3+1) dimensions. Our main results concern how Planck-like spectrum law is sensitive to terms that violate Lorentz symmetry. We have realized that Planck law acquires extra terms proportional to the violating parameters: for the CPT-odd model, the leading extra terms appear to be linear or quadratic in these violating parameters according to the background vector is parallel or perpendicular to the photon wave-vector. In the CPT-even case a linear `correction' shows up. Among other possible ways to probe for these violations, by means of the present results, we may quote the direct observation of the extra contributions or an unbalancing in the mean occupation number of photon modes in a given thermal bath.
Fonseca Jakson M.
Gomes A. H.
Moura-Melo Winder A.
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