Mode-coupling theory for heteropolymers.

E Pitard; E I Shakhnovich

doi:10.1103/physreve.63.041501

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Mode-coupling theory for heteropolymers.

E Pitard·E I Shakhnovich

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Abstract

We study the Langevin dynamics of a heteropolymer by means of a mode-coupling approximation scheme, giving rise to a set of coupled integro-differential equations relating the response and correlation functions. The analysis shows that there is a regime at low temperature characterized by out-of-equilibrium dynamics, with violation of time-translational invariance and of the fluctuation-dissipation theorem. The onset of aging dynamics at low temperatures gives insight into the nature of the slow dynamics of a disordered polymer. We also introduce a renormalization-group treatment of our mode-coupling equations, which supports our analysis, and might be applicable to other systems.

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Biophysics Models, Statistical Models, Theoretical Polymers Temperature Time Factors Journal Article Research Support, U.S. Gov't, P.H.S.

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E Pitard, E I Shakhnovich. 2001-03-20. Mode-coupling theory for heteropolymers.. https://doi.org/10.1103/physreve.63.041501

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