Solitons and 1/f Noise in Molecular Chains

Preprint

20 April 1993

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9304034

Abstract

Davydov's model of solitons in alpha-helix protein chains is shown to display features of self-organized criticality (SOC), i.e., power law behaviour of correlations in space and 1/f-noise, as a consequence of considering random peptide group displacements from their (periodic) equilibrium positions along a chain. This may shed light on a basic mechanism leading to obtain flicker noise in alpha-helix protein chains and to predict a SOC regime in biomolecular structures from first principles. We believe our treatment of 1/f noise to be of some relevance to recent findings due to Voss on DNA [Phys. Rev. Lett. 68, 3805 (1992)].

Keywords

DAVYDOV'S MODEL
HELIX PROTEIN
ALPHA HELIX
1/F NOISE
SOLITONS
PEPTIDE
NOISE
SOC

All Related Versions

Version 1, 1993-04-20, ArXiv
Version 1, 1993-04-20, ArXiv (Unconfirmed version)
Version 2, 1993-04-20, ArXiv (Unconfirmed version)
Published version: Physical Review E, 47 (6), R3818.

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