Yang-Lee zeros and the helix-coil transition in a continuum model of polyalanine
arXiv:cond-mat/0012093 · doi:10.1016/S0378-4371(00)00603-8
Abstract
We calculate the Yang-Lee zeros for characteristic temperatures of the helix-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 estimates for critical exponents are presented and the relation of our results to the Lee-Yang theorem is discussed.
15 pages and 5 figures