Quantum Monte Carlo simulation of the Davydov model

Publisher Website
Google Scholar
Abstract
Through an application of the quantum Monte Carlo technique, we investigate the thermal equilibrium properties of the one-dimensional model proposed by Davydov for the description of energy transport processes in the α helix. The deformation of the lattice about a single (moving) excitation is computed over a wide range of temperatures. We find that the model does admit a coherent structure at low temperatures, but that this structure is substantially destroyed above 7 K.