A geometric Monte Carlo algorithm for the antiferromagnetic Ising model with "topological" term at Theta=Pi

Azcoiti, V. (Universidad de Zaragoza) ; Cortese, G. ; Follana, E. (Universidad de Zaragoza) ; Giordano, M.

Resumen: 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.

Idioma: Inglés

DOI: 10.1016/j.nuclphysb.2014.04.004

Año: 2014

Publicado en: NUCLEAR PHYSICS B 883, 1 (2014), 656-684
ISSN: 0550-3213

Factor impacto JCR: 3.929 (2014)

Categ. JCR: PHYSICS, PARTICLES & FIELDS rank: 7 / 27 = 0.259 (2014) - Q2 - T1

Financiación: info:eu-repo/grantAgreement/ES/DGA/E24-2
Financiación: info:eu-repo/grantAgreement/ES/MICINN/FPA2009-09638

Tipo y forma: Article (Published version)

Área (Departamento): Física Teórica (Departamento de Física Teórica)