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Adsorption of a random heteropolymer with self-interactions onto an interface

Valerii A. Brazhnyi·Semjon Stepanow
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Abstract

We consider the adsorption of a random heteropolymer onto an interface within the model by Garel et al. [1] by taking into account self-interactions between the monomers. Within the replica trick and by using a self-consistent preaveraging procedure we map the adsorption problem onto the problem of binding state of a quantum mechanical Hamiltonian. The analysis of the latter is treated within the variational method based on the 2-nd Legendre transform. We have found that self-interactions favor the localization. The effect is intensified with decrease of the temperature. Within a model without taking into account the repulsive ternary monomer-monomer interactions we predict a reentrant localization transition for large values of the asymmetry of the heteropolymer and at low enough temperatures.

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Valerii A. Brazhnyi, Semjon Stepanow. 2001-10-08. Adsorption of a random heteropolymer with self-interactions onto an interface. https://doi.org/10.1140/epjb%2Fe2002-00166-1

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