A growth walk model for estimating the canonical partition function of interacting self-avoiding walk

The Journal of Chemical Physics
S L NarasimhanK P N Murthy

Abstract

We have explained in detail why the canonical partition function of interacting self-avoiding walk (ISAW) is exactly equivalent to the configurational average of the weights associated with growth walks, such as the interacting growth walk (IGW), if the average is taken over the entire genealogical tree of the walk. In this context, we have shown that it is not always possible to factor the density of states out of the canonical partition function if the local growth rule is temperature dependent. We have presented Monte Carlo results for IGWs on a diamond lattice in order to demonstrate that the actual set of IGW configurations available for study is temperature dependent even though the weighted averages lead to the expected thermodynamic behavior of ISAW.

References

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Mar 15, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S L NarasimhanK P N Murthy
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