Rare-event induced binding transition of heteropolymers

Lei-Han Tang; Hugues Chaté

doi:10.1103/physrevlett.86.830

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Rare-event induced binding transition of heteropolymers

Lei-Han Tang·Hugues Chaté

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Abstract

Sequence heterogeneity broadens the binding transition of a polymer onto a linear or planar substrate. This effect is analyzed in a real-space renormalization group scheme designed to capture the statistics of rare events. In the strongly disordered regime, binding initiates at an exponentially rare set of ``good contacts''. Renormalization of the contact potential yields a Kosterlitz-Thouless type transition in any dimension. This and other predictions are confirmed by extensive numerical simulations of a directed polymer interacting with a columnar defect.

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Lei-Han Tang, Hugues Chaté. 2000-07-23. Rare-event induced binding transition of heteropolymers. https://doi.org/10.1103/physrevlett.86.830

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