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Alonso, J. L. ; Ballesteros, H.G. ; Campos, I. ; Carmona, J. M. ; Clemente Gallardo, J. ; Fernández Pérez, Luis Antonio ; Íñiguez, D. ; Martín Mayor, Víctor ; Muñoz Sudupe, Antonio ; Tarancón, A. ; Ullod, C. L. | Elsevier | 1997-02We present antiferromagnetism as a mechanism capable of modifying substantially the phase diagram and the critical behaviour of statistical mechanical models. This is particularly relevant in four dimensions, due to the connection between second[...]texto impreso
Campos, I. ; Cotallo-Abán, M. ; Martín Mayor, Víctor ; Pérez Gaviro, S. ; Tarancón, A. | American Physical Society | 2007-07-06texto impreso
García Pérez, M. ; González Arroyo, A. ; Martínez, P. ; Fernández Pérez, Luis Antonio ; Muñoz Sudupe, Antonio ; Ruiz Lorenzo, J. J. ; Azcoiti, V. ; Campos, I. ; Ciria, J.C. ; Cruz, A. ; Íñiguez, D. ; Lesmes, F. ; Badoni, D. ; Pech, J. | Elsevier Science BV | 1993-05-20We study SU(2) lattice gauge theory in small volumes and with twist m ? = (1, 1, 1). We investigate the presence of the periodic instantons of Q = 1/2 and determine their free energy and their contribution to the splitting of energy flux sectors[...]texto impreso
Campos, I. ; Cotallo-Abán, M. ; Martín Mayor, Víctor ; Pérez Gaviro, S. ; Tarancón, A. | American Physical Society | 2006-11-24It is shown, by means of Monte Carlo simulation and finite size scaling analysis, that the Heisenberg spin glass undergoes a finite-temperature phase transition in three dimensions. There is a single critical temperature, at which both a spin gl[...]
