@article{10272/11484,
year = {2015},
url = {http://hdl.handle.net/10272/11484},
abstract = {We propose a method to identify the order of a quantum phase transition by using area measures of the ground
state in phase space. We illustrate our proposal by analyzing the well known example of the quantum cusp and
four different paradigmatic boson models: Dicke, Lipkin-Meshkov-Glick, interacting boson model, and vibron
model.},
organization = {We thank J. E. Garcia Ramos for useful discussion. Work in University of Huelva was funded trough MINECO Grants No. FIS2011-28738-C02-02 and No. FIS2014-53448-C2-2-P and by Spanish Consolider-Ingenio 2010 (Grant No. CPANCSD2007-00042). Work in University of Granada was supported by the Spanish Projects: MINECO Grant No. FIS2014-59386-P and Junta de Andalucia Projects No. P12.FQM.1861 and No. FQM-381.},
publisher = {American Physical Society},
title = {Identifying the order of a quantum phase transition by means of Wehrl entropy in phase space},
doi = {10.1103/PhysRevE.92.052106},
author = {Castaños, Octavio and Calixto, M. and Pérez Bernal, Francisco and Romera, Elvira},
}