3 papers
physics.class-ph2026
Fermi--Born--Infeld electrodynamics: a nonlinear theory with physical gauge
Renato Vieira dos Santos
We construct a nonlinear extension of Fermi's electrodynamics by incorporating a Born--Infeld structure that depends directly on the four-potential rather than on the field s…
physics.class-ph2026
The Soul of Waves: Physical Interpretation of Dispersion Relations
Renato Vieira dos Santos
This pedagogical paper presents a comprehensive framework for interpreting dispersion relations across fundamental physical systems. We adopt a novel approach that starts from the…
gr-qc2026
Does Gravity Care About Electric Charge? A Minimalist Model and Experimental Test
Renato Vieira dos Santos
Does gravity care about electric charge? Precision tests of the weak equivalence principle achieve remarkable sensitivity but deliberately minimize electric charge on test masses,…