Copolymer Networks: Multifractal dimension spectra in polymer field theory

Details Copolymer Networks: Multifractal dimension spectra in polymer field theory Copolymer Networks: Multifractal dimension spectra in polymer field theory

1997-05-27

arxiv.org/abs/cond-mat/9705273v1

Europhys. Lett. 39 (1997) 31-36

Physics

Condensed Matter

7 pages, revtex, 1 latex picture

Scientific paper

10.1209/epl/i1997-00309-6

We explore the rich scaling behavior of copolymer networks in solution. We establish a field theoretic description in terms of composite operators. Our 3rd order resummation of the spectrum of scaling dimensions brings about remarkable features: Convexity of the spectra allows for a multifractal interpretation. This has not been conceived for power of field operators of $\phi^4$ field theory before. The 2D limit of the mutually avoiding walk star apparently corresponds to results of a conformal Kac series. Such a classification seems not possible for the 2D limit of other copolymer stars. The 3rd order calculation of a large collection of exponents furthermore allows for a consistency check of two complementary schemes: epsilon expansion and renormalization at fixed dimension.

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