59 citations · 449 across the 27 of their papers we have counts for
4 papers · 1 filter
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…
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…
Critical behavior of repulsive linear -mers on triangular lattices
P. M. Pasinetti, F. Roma, J. L. Riccardo +1
Monte Carlo (MC) simulations and finite-size scaling analysis have been carried out to study the critical behavior in a submonolayer two-dimensional gas of repulsive linear -mer…
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…