28 citations · 96 across the 6 of their papers we have counts for
6 papers
Ground-state topology of the Edwards-Anderson +/-J spin glass model
F. Roma, S. Risau-Gusman, A. J. Ramirez-Pastor +2
In the Edwards-Anderson model of spin glasses with a bimodal distribution of bonds, the degeneracy of the ground state allows one to define a structure called backbone, which can b…
Surface order-disorder phase transitions and percolation
M. Cecilia Gimenez, Felix Nieto, Antonio J. Ramirez-Pastor
In the present paper, the connection between surface order-disorder phase transitions and the percolating properties of the adsorbed phase has been studied. For this purpose, four…
The ground state energy of the Edwards-Anderson spin glass model with a parallel tempering Monte Carlo algorithm
F. Roma, S. Risau-Gusman, A. J. Ramirez-Pastor +2
We study the efficiency of parallel tempering Monte Carlo technique for calculating true ground states of the Edwards-Anderson spin glass model. Bimodal and Gaussian bond distribut…
Thermal Percolation for Interacting Monomers Adsorbed on Square Lattices
M. Cecilia Gimenez, Felix Nieto, Antonio J. Ramirez-Pastor
In this paper the percolation of monomers on a square lattice is studied as the particles interact with either repulsive or attractive energies. By means of a finite-size scaling a…
Influence of the Ground-State Topology on the Domain-Wall Energy in the Edwards-Anderson +/- J Spin Glass Model
F. Roma, S. Risau-Gusman, A. J. Ramirez-Pastor +2
We study the phase stability of the Edwards-Anderson spin-glass model by analyzing the domain-wall energy. For the bimodal distribution of bonds, a topological analysis of the grou…
Novel order parameter to describe the critical behavior of Ising spin glass models
F. Roma, F. Nieto, A. J. Ramirez-Pastor +1
A novel order parameter for spin glasses is defined based on topological criteria and with a clear physical interpretation. is first investigated for well known magnetic sy…