Title: Percolation, the special theta' point, and the theta-theta' universality puzzle
Authors: Vanderzande, Carlo
Stella, Al
Seno, F
Issue Date: Nov-1991
Publisher: American physical soc
Series Title: Physical review letters vol:67 issue:20 pages:2757-2760
Abstract: Results for d-2 percolation allow one to determine exactly the critical exponents for a polymer undergoing the special surface transition, while its bulk is at the THETA' point. Gamma-l = 8/7 and phi-s = 8/21 are the entropic and the crossover surface exponents, respectively. On the other hand, exact enumerations analysis leads to conjecture gamma-l = 4/7 at an ordinary THETA' point. This strongly supports universality of THETA and THETA' points. Similar exact results are obtained for a multicritical walk in the presence of correlated percolation vacancies.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: DI
Appears in Collections:Theoretical Physics Section

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