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arXiv · 2508.14928

Topological Relics of Infrared QED in the Rayleigh-Jeans Regime

J. Gamboa
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Abstract

We revisit infrared Quantum Electrodynamics (QED) by reformulating the dressing of charged states in terms of a functional Berry connection. In this framework, the electron--photon cloud acquires a topological character, leading to a modification of the Rayleigh-Jeans limit of blackbody radiation. The deviation is controlled by a dimensionless parameter $\epsilon$, estimated as $\epsilon \simeq (1.7$--$2.3)\times 10^{-3}$ in the $80$-$110~\mathrm{GHz}$ range, corresponding to a fractional shift of $\sim 0.2\%$. This effect lies within the sensitivity of current high-precision radiometry and, being system-independent, should be observable both in laboratory blackbody spectra and in the cosmic microwave background.

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J. Gamboa. 2025-08-19. Topological Relics of Infrared QED in the Rayleigh-Jeans Regime. https://arxiv.org/abs/2508.14928

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