As already made in ChemRxiv5, let us consider the words by Orazio Svelto, 1970, about the homogeneous broadening of the photonic emission. In the case that we have a dipole damped oscillator model, we can observe the spectral line of the spontaneous emission with a "natural" or "intrinsic" broadening. This homogeneous broadening produces a line profile described by a Lorentzian function.