Modification of black-body radiance at low temperatures and frequencies

Details Modification of black-body radiance at low temperatures and frequencies Modification of black-body radiance at low temperatures and frequencies

2010-06-15

arxiv.org/abs/1006.3011v2

Annalen Phys.522:904-911,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pp, 5 figs; v2: slight changes in text, extended discussion of Rydberg-atom experiment

Scientific paper

10.1002/andp.201000073

In contrast to earlier reports, where the spectrum of the {\sl energy density} of photonic black-body radiation modified by SU(2) effects was discussed, we discuss the low-frequency spectrum of the {\sl radiance} at temperatures ranging between 5 and 20 Kelvin. We conclude that compared to the conventional theory the only observable effect is associated with the spectral gap (total screening). We also discuss how a low-temperature black body cavity under the influence of a sufficiently strong static electric field is forced to emit according to Planck's radiation law (pure U(1) theory) even at low frequencies and how this effect can be utilized to measure SU(2) induced deviations.

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