Phenomenology of the Origin of Isotope Effect

Our paper describes the macroscopical manifestation of the origin of isotope effect via spectroscopic study of the reflection and luminescence spectra of LiH and LiD crystals which are differ by term of one neutron from each other. The experimental results demonstrate the direct evidence of the strong nuclear interaction. Inasmuch as the gravitation, electromagnetic and weak interactions are the same in both of kind crystals, it only changes the strong interaction. Therefore a sole deduction is made that the renormalization of the energy of electromagnetic excitations (electrons, excitons, phonons) is carried out by the strong nuclear interaction. The last one simultaneously indicates the origin of the isotope effect is caused by the strong nuclear interaction. The necessity to take into account the more close relation between quantum chromodynamics and quantum electrodynamics is underlined. In the first step the quantum electrodynamics should be taken into account the strong interaction at the description of the dynamics of elementary excitations (electrons, excitons, phonons) dynamics in solids.