2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/145519Quantum-mechanical analogue of Landau-Lifshitz equation has been derived. It has been established that Landau-Lifshitz equation is fundamental physical equation underlying the dynamics of spectroscopic transitions and transitional phenomena. New phenomenon is predicted: electrical spin wave resonance (ESWR) being to be electrical analogue of magnetic spin wave resonance.6 pages; extended versionQuantum Physicstext