Conformational solitons in stacked systems

Abstract
With the help of numerical simulations using an extended Su-Schrieffer-Heeger-type Hamiltonian, the existence of solitary waves in a polyformamide stack is shown. Each formamide unit in the stack has three geometrical degrees of freedom during the time simulation. The passing of a solitary wave through the stack and its reflection at the end of the chain is shown. In addition, the collision of two solitary waves is discussed.