57809 20170327111850.0 doi 10.1016/j.nuclphysb.2014.04.004 sideral 86420 ART-2014-86420 eng (orcid)0000-0002-8215-1413 Azcoiti, V. Universidad de Zaragoza A geometric Monte Carlo algorithm for the antiferromagnetic Ising model with "topological" term at Theta=Pi 2014 Access copy available to the general public Unrestricted In this work we study the two and three-dimensional antiferromagnetic Ising model with an imaginary magnetic field iTheta at Theta=Pi. In order to perform numerical simulations of the system we introduce a new geometric algorithm not affected by the sign problem. Our results for the 2D model are in agreement with the analytical solution. We also present new results for the 3D model which are qualitatively in agreement with mean-field predictions. info:eu-repo/grantAgreement/ES/DGA/E24-2 info:eu-repo/grantAgreement/ES/MICINN/FPA2009-09638 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.929 2014 PHYSICS, PARTICLES & FIELDS 7 / 27 = 0.259 2014 Q2 T1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Cortese, G. (orcid)0000-0002-4742-4279 Follana, E. Universidad de Zaragoza Giordano, M. 2004 405 Universidad de Zaragoza Departamento de Física Teórica Física Teórica 883, 1 (2014), 656-684 Nucl. phys., B NUCLEAR PHYSICS B 0550-3213 786422 http://zaguan.unizar.es/record/57809/files/texto_completo.pdf Versión publicada 52305 http://zaguan.unizar.es/record/57809/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:57809 articulos driver 2016-12-13-12:55:06 ARTICLE