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Large scale behavior of a two-dimensional model of anisotropic branched polymers
Milan Knežević1, Dragica Knežević
1Faculty of Physics, University of Belgrade, POB 368, 11001 Belgrade, Serbia.
Abstract:
We study critical properties of anisotropic branched polymers modeled by semi-directed lattice animals on a triangular lattice. Using the exact transfer-matrix approach on strips of quite large widths and phenomenological renormalization group analysis, we obtained pretty good estimates of various critical exponents in the whole high-temperature region, including the point of collapse transition. Our numerical results suggest that this collapse transition belongs to the universality class of directed percolation.
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