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Where two fractals meet: the scaling of a self-avoiding walk on a percolation cluster | | C. von Ferber
; V. Blavats’ka
; R. Folk
; Yu. Holovatch
; | | Date: |
2 Dec 2003 | | Subject: | Soft Condensed Matter | cond-mat.soft | | Abstract: | The scaling properties of self-avoiding walks on a d-dimensional diluted lattice at the percolation threshold are analyzed by a field-theoretical renormalization group approach. To this end we reconsider the model of Y. Meir and A. B. Harris (Phys. Rev. Lett. 63:2819 (1989)) and argue that via renormalization its multifractal properties are directly accessible. While the former first order perturbation did not agree with the results of other methods, we find that the asymptotic behavior of a self-avoiding walk on the percolation cluster is governed by the exponent nu_p=1/2 + epsilon/42 + 110epsilon^2/21^3, epsilon=6-d. This analytic result gives an accurate numeric description of the available MC and exact enumeration data in a wide range of dimensions 2<=d<=6. | | Source: | arXiv, cond-mat/0312065 | | Other source: | [GID 363527] pmid15524568 | | Services: | Forum | Review | PDF | Favorites | |
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