%0 Journal Article %T On Electron Clouds and Light %A Claude Daviau %J Journal of Modern Physics %P 491-510 %@ 2153-120X %D 2024 %I Scientific Research Publishing %R 10.4236/jmp.2024.154024 %X The wave equation of the electron, recently improved, allows physics to obtain all the quantum numbers and other results explaining the hydrogen spectrum. The Pauli exclusion principle then gives the description of electron clouds used in chemistry. The relativistic wave equation is associated with a Lagrangian density, thus also with an energy-momentum tensorial density. The wave of an electron cloud adds these energy-momentum densities, while photons in light are precisely those differences between such energy-momentum densities. %K Quantum Mechanics %K Nonlinear Wave Equation %K Relativity %K Electron Clouds %K Photon %K Light %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=132085