Condensed Matter > Statistical Mechanics
[Submitted on 5 Dec 2016]
Title:Transfer matrix algorithm for computing the exact partition function of a square lattice polymer
View PDFAbstract:I develop a transfer matrix algorithm for computing the exact partition function of a square lattice polymer with nearest-neighbor interaction, by extending a previous algorithm for computing the total number of self-avoiding walks. The computation time scales as ~1.6^N with the chain length N, in contrast to the explicit enumeration where the scaling is ~ 2.7^N. The exact partition function can be obtained faster with the transfer matrix method than with the explicit enumeration, for N>25. The new results for up to N=42 are presented.
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