Universality in the three-dimensional random-field Ising model
We solve a long-standing puzzle in statistical mechanics of disordered systems. By
performing a<? format?> high-statistics simulation of the D= 3 random-field Ising model at …
performing a<? format?> high-statistics simulation of the D= 3 random-field Ising model at …
Efficient numerical methods for the random-field Ising model: Finite-size scaling, reweighting extrapolation, and computation of response functions
It was recently shown [Phys. Rev. Lett. 110, 227201 (2013) PRLTAO 0031-9007
10.1103/PhysRevLett. 110.227201] that the critical behavior of the random-field Ising model …
10.1103/PhysRevLett. 110.227201] that the critical behavior of the random-field Ising model …
Multicritical End Point of the First-Order Ferromagnetic Transition<? format?> in Colossal Magnetoresistive Manganites
We have studied the bandwidth–temperature–magnetic-field phase diagram of RE 0.55 Sr
0.45 MnO 3 colossal magnetoresistance manganites with ferromagnetic metal (FM) ground …
0.45 MnO 3 colossal magnetoresistance manganites with ferromagnetic metal (FM) ground …
Thermodynamic first order transition and inverse freezing in a 3D spin glass
We present a numerical study of the random Blume-Capel model in three dimensions. The
phase diagram is characterized by spin-glass–paramagnet phase transitions of both first …
phase diagram is characterized by spin-glass–paramagnet phase transitions of both first …
Tethered Monte Carlo: Computing the effective potential without critical slowing down
We present Tethered Monte Carlo, a simple, general purpose method of computing the
effective potential of the order parameter (Helmholtz free energy). This formalism is based …
effective potential of the order parameter (Helmholtz free energy). This formalism is based …
Critical behavior of the pure and random-bond two-dimensional triangular Ising ferromagnet
NG Fytas, A Malakis - Physical Review E—Statistical, Nonlinear, and Soft …, 2010 - APS
We investigate the effects of quenched bond randomness on the critical properties of the two-
dimensional ferromagnetic Ising model embedded in a triangular lattice. The system is …
dimensional ferromagnetic Ising model embedded in a triangular lattice. The system is …
Numerical test of the Cardy-Jacobsen conjecture in the site-diluted Potts model in three dimensions
We present a microcanonical Monte Carlo simulation of the site-diluted Potts model in three
dimensions with eight internal states, partly carried out on the citizen supercomputer …
dimensions with eight internal states, partly carried out on the citizen supercomputer …
Rugged free-energy landscapes in disordered spin systems
D Yllanes - arxiv preprint arxiv:1111.0266, 2011 - arxiv.org
This thesis is an attempt to provide a new outlook on complex systems, as well as some
physical answers for certain models, taking a computational approach. We have focused on …
physical answers for certain models, taking a computational approach. We have focused on …
Random Blume-Capel model on a cubic lattice: First-order inverse freezing in a three-dimensional spin-glass system
We present a numerical study of the Blume-Capel model with quenched disorder in three
dimensions. The phase diagram is characterized by spin-glass/paramagnet phase …
dimensions. The phase diagram is characterized by spin-glass/paramagnet phase …
Critical behavior of the dilute antiferromagnet in a magnetic field
We study the critical behavior of the diluted antiferromagnet in a field with the tethered Monte
Carlo formalism. We compute the critical exponents (including the elusive hyperscaling …
Carlo formalism. We compute the critical exponents (including the elusive hyperscaling …