Yang-Lee zeros and the helix-coil transition in a continuum model of polyalanine

Authors
Alves, NA Hansmann, UHE
Citation
Na. Alves et Uhe. Hansmann, Yang-Lee zeros and the helix-coil transition in a continuum model of polyalanine, PHYSICA A, 292(1-4), 2001, pp. 509-518
Citations number
30
Categorie Soggetti
Physics
Journal title
PHYSICA A
ISSN journal
03784371 → ACNP
Volume
292
Issue
1-4
Year of publication
2001
Pages
509 - 518
Database
ISI
SICI code
0378-4371(20010315)292:1-4<509:YZATHT>2.0.ZU;2-E
Abstract
We calculate the Yang-Lee zeros for characteristic temperatures of the heli x-coil transition in a continuum model of polyalanine. The distribution of these zeros differs from predictions of the Zimm-Bragg theory and supports recent claims that polyalanine exhibits a true phase transition. New estima tes for critical exponents are presented and the relation of our results to the Lee-Yang theorem is discussed. (C) 2001 Elsevier Science B.V. All righ ts reserved.