Numerical studies of Davydov's nonlinear dynamic model for the α-helix protein confirm his prediction of soliton formation. These solitons are robust localized dynamic entities that couple molecular (amide-I) vibrations to longitudinal sound waves; they may provide an efficient mechanism for energy transport in biological systems. Both the numerical studies and analytical computations show a threshold level of non-linearity below which solitons will not form. A rough estimate indicates this nonlinearity has the required order of magnitude.
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Mathematical Physics
- Condensed Matter Physics
- Applied Mathematics