Comment on "First-order phase transitions: equivalence between bimodalities and the Yang-Lee theorem"
| dc.creator | Touchette, Hugo | |
| dc.date | 2005-03-02 | |
| dc.date.accessioned | 2026-07-07T06:22:03Z | |
| dc.date.available | 2026-07-07T06:22:03Z | |
| dc.description | I discuss the validity of a result put forward recently by Chomaz and Gulminelli [Physica A 330 (2003) 451] concerning the equivalence of two definitions of first-order phase transitions. I show that distributions of zeros of the partition function fulfilling the conditions of the Yang-Lee Theorem are not necessarily associated with nonconcave microcanonical entropy functions or, equivalently, with canonical distributions of the mean energy having a bimodal shape, as claimed by Chomaz and Gulminelli. In fact, such distributions of zeros can also be associated with concave entropy functions and unimodal canonical distributions having affine parts. A simple example is worked out in detail to illustrate this subtlety. | |
| dc.description | 3 pages, revtex4, 1 figure | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0503029 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0503029 | |
| dc.identifier | Physica A 359, 375-379, 2005. | |
| dc.identifier | doi:10.1016/j.physa.2005.05.098 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/95795 | |
| dc.subject | Statistical Mechanics | |
| dc.title | Comment on "First-order phase transitions: equivalence between bimodalities and the Yang-Lee theorem" | |
| dc.type | text |