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Collapse of Randomly Self-Interacting Polymers

Yacov Kantor·Mehran Kardar
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Abstract

We use complete enumeration and Monte Carlo techniques to study self--avoiding walks with random nearest--neighbor interactions described by $v_0q_iq_j$, where $q_i=\pm1$ is a quenched sequence of ``charges'' on the chain. For equal numbers of positive and negative charges ($N_+=N_-$), the polymer with $v_0>0$ undergoes a transition from self--avoiding behavior to a compact state at a temperature $θ\approx1.2v_0$. The collapse temperature $θ(x)$ decreases with the asymmetry $x=|N_+-N_-|/(N_++N_-)$

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Yacov Kantor, Mehran Kardar. 1994-07-01. Collapse of Randomly Self-Interacting Polymers. https://doi.org/10.1209/0295-5075%2F28%2F3%2F003

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