Special features of the nonlinear dynamics of quasiparticles in molecular structures with hydrogen bonds with allowance for the interaction of not only the nearest neighbors

Abstract

The dynamics of propagation of protons along a molecular chain of hydrogen bonds is analyzed with allowance for the interaction of the first and second neighbors in the proton sublattice. It is demonstrated that two new charge density excitation types (quasiparticles) arise in this system for which exact analytical dependences are found. The propagation velocity of one of these excitations is high enough, which explains the high mobility of protons along the chain of hydrogen bonds