Electron-photon interaction and thermal disequilibrium irreversibility

Umberto Lucia (Politecnico di Torino)

Atoms continuously interact with the photons of the electromagnetic fields in their environment. This electromagnetic interaction is the consequence of the thermal non-equilibrium. It introduces an element of randomness to atomic and molecular motion, which brings to the decreasing of path information required for microscopic reversibility of evolution. In any atomic electron-photon interaction an energy footprint is given to the atom, and the emitted photon looses energy. The emission of radiation isn’t time reversible and this causes the information-destroying in photon-electron interaction which generates the irreversibility in macroscopic systems. Full text

 

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