Thermodynamic transition associated with irregularly ordered ground states in a lattice gas model
Statistical Mechanics
2015-05-19 v3 Disordered Systems and Neural Networks
Abstract
A two-dimensional lattice gas model is proposed. The ground state of this model with a fixed density is neither periodic nor quasi-periodic. It also depends on system size in an irregular manner. On the other hand, it is ordered in the sense that the entropy density is zero in the thermodynamic limit. The existence of a thermodynamic transition associated with such irregularly ordered ground states is conjectured from a duality relation for a thermodynamic function. This conjecture is supported by a phenomenological argument and numerical experiments.
Keywords
Cite
@article{arxiv.1006.4972,
title = {Thermodynamic transition associated with irregularly ordered ground states in a lattice gas model},
author = {Shin-ichi Sasa},
journal= {arXiv preprint arXiv:1006.4972},
year = {2015}
}
Comments
12 pages, 7 figures. A slightly revised version with adding one reference (ver. 2). The version 3, in which the presentation has been revised, has been published in J. Phys. A