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Autor Ruiz Lorenzo, J. J. |
Documentos disponibles escritos por este autor (24)
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Billoire,, A. ; Fernández Pérez, Luis Antonio ; Maiorano, A. ; Marinari, E. ; Martín Mayor, Víctor ; Moreno Gordo, J. ; Parisi, G. ; Ricci-Tersenghi, F. ; Ruiz Lorenzo, J. J. | American Physical Society | 2017-07-21Chaotic size dependence makes it extremely difficult to take the thermodynamic limit in disordered systems. Instead, the metastate, which is a distribution over thermodynamic states, might have a smooth limit. So far, studies of the metastate ha[...]texto impreso
Cruz, A. ; Fernández Pérez, Luis Antonio ; Jiménez, S. ; Ruiz Lorenzo, J. J. ; Tarancón, A. | American Physical Society | 2003-06-01We study the fluctuation-dissipation relations for a three dimensional Ising spin glass in a magnetic field both in the high temperature phase as well as in the low temperature one. In the region of times simulated we have found that our results[...]texto impreso
Antonelli, S. ; Bellacci, M. ; Fernández Pérez, Luis Antonio ; Muñoz Sudupe, Antonio ; Ruiz Lorenzo, J. J. ; Sarno, R. ; Tarancón, A. ; Bartoloni, A. ; Battista, C. ; Cabibbo, N. ; Cabasino, S. ; Panizzi, E. ; Paolucci, P. S. ; Todeesco, G. M. ; Torelli, M. ; Tripiccione, R. ; Vicini, P. | Elsevier Science BV | 1995-02-02Polyakov type loops are responsible for the difference between quenched and unquenched finite size effects on the QCD mass spectrum. With a numerical simulation, using appropriate sea quark spatial boundary conditions, we show that we can align [...]texto impreso
Fernández Pérez, Luis Antonio ; Muñoz Sudupe, Antonio ; Ruiz Lorenzo, J. J. ; Tarancón, A. | Elsevier Science BV | 1995-04We propose a family of renormalization group transformations characterized by free parameters that may be tuned in order to reduce the truncation effects. As a check we test them in the three dimensional XY model. The Schwinger-Dyson equations a[...]texto impreso
Fernández Pérez, Luis Antonio ; Muñoz Sudupe, Antonio ; Ruiz Lorenzo, J. J. | Amer Physical Soc | 1994-11-01We propose a new real space renormalization group transformation useful for Monte Carlo calculations in theories with global or local symmetries. From relaxation arguments we de6ne the block-spin transformation with two tunable free parameters, [...]texto impreso
Ballesteros, H.G. ; Fernández Pérez, Luis Antonio ; Martín Mayor, Víctor ; Muñoz Sudupe, Antonio ; Parisi, G. ; Ruiz Lorenzo, J. J. | IOP publishing ltd | 1999-01-08Using Finite-Size Scaling techniques we obtain accurate results for critical quantities of the Ising model and the site percolation, in three dimensions. We pay special attention in parameterizing the corrections-to-scaling, what is necessary to[...]texto impreso
Ballesteros, H. G. ; Fernández Pérez, Luis Antonio ; Martín Mayor, Víctor ; Muñoz Sudupe, Antonio ; Parisi, G. ; Ruiz Lorenzo, J. J. | Elsevier | 1998-02-23Using finite-size scaling techniques, we study the critical properties of the site-diluted Ising model in four dimensions. We carry out a high-statistics Monte Carlo simulation for several values of the dilution. The results support the perturba[...]texto impreso
Fernández Pérez, Luis Antonio ; Marinari, E. ; Martín Mayor, Víctor ; Parisi, G. ; Ruiz Lorenzo, J. J. | American Physical Society | 2016-07-01We use finite size scaling to study Ising spin glasses in two spatial dimensions. The issue of universality is addressed by comparing discrete and continuous probability distributions for the quenched random couplings. The sophisticated temperat[...]texto impreso
Maiorano, A. ; Martín Mayor, Víctor ; Ruiz Lorenzo, J. J. ; Tarancón, A. | American Physical Society | 2007-08-31We perform intensive numerical simulations of the three-dimensional site-diluted Ising antiferromagnet in a magnetic field at high values of the external applied field. Even if data for small lattice sizes are compatible with second-order critic[...]