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Bond Percolation of Polymers by Gopalakrishnan, Manoj; Schmittmann, Beate; Zia, R. K. P. is a scholarly article available to read on EtoBox.

What is Bond Percolation of Polymers about?

We study bond percolation of $N$ non-interacting Gaussian polymers of $\ell$ segments on a 2D square lattice of size $L$ with reflecting boundaries. Through simulations, we find the fraction of configurations displaying {\em no} connected cluster which span from one edge to the opposite edge. From this fraction, we define a critical segment density $\rho_{c}^L(\ell)$ and the associated critical fraction of occupied bonds $p_{c}^L(\ell)$, so that they can be identified as the percolation threshold in the $L \to \infty$ limit. Whereas $p_{c}^L(\ell)$ is found to decrease monotonically with $\ell$ for a wide range of polymer lengths, $\rho_{c}^L(\ell)$ is non-monotonic. We give physical arguments for this intriguing behavior in terms of the competing effects of multiple bond occupancies and polymerization.

Author

Gopalakrishnan, Manoj; Schmittmann, Beate; Zia, R. K. P.

Published

2004

Language

EN