Davydov soliton dynamics: temperature effects

Abstract

With an improved version of a model for inclusion of temperature into Davydov's model using the mod D₂) ansatz state the author surveyed the parameter space of the Hamiltonian. Solitons were found to be stable at 300 K under certain conditions on the parameter values which may be fulfilled in proteins. It is numerically shown that the results agree with those of special versions of Langevin-equation models. Agreement with recently published perturbation theoretical results is also found.