Fragmentation of quantum systems with many degrees of freedom under external IR radiation

Quantum systems containing substructures of ordered identical components that can be represented by quantum oscillators with two energy levels are considered. It has been demonstrated that the collective vibrational excitation of these substructure components leads to a superfast transport of the vibrational energy inside the quantum system and to its fragmentation. An analytical expression has been obtained for the fragmentation rate of quantum systems with many degrees of freedom in IR fields. The fragmentation process of such systems in external IR fields has been shown to depend in a resonance fashion on the field intensity and on the number of identical degrees of freedom, i.e., the number of identical substructure components.