Title: Sequence randomness and polymer collapse transitions
Authors: Monari, P
Stella, AL
Vanderzande, Carlo
Orlandini, E
Issue Date: Jul-1999
Publisher: American physical soc
Series Title: Physical review letters vol:83 issue:1 pages:112-115
Abstract: Chain disorder with frustration can modify the universality class of scaling at the theta transition of heteropolymers. This is shown for a model with random two-body potentials in 2D on the basis of exact enumeration and accurate Monte Carlo results. When the average fraction of repulsive monomer-monomer interactions grows beyond a certain finite threshold, the temperature below which disorder becomes relevant coincides with the theta one, and scaling exponents definitely start deviating from those valid For homopolymers.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: DI
Appears in Collections:Theoretical Physics Section

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