7 citations · 7 across the 1 of their papers we have counts for
6 papers
Magnetoresistance in nanostructures: the role of nonuniform current
Tiago S. Machado, M. Argollo de Menezes, Tatiana G. Rappoport +1
We developed a method to calculate the magnetoresistance of magnetic nanostructures. We discretize a magnetic disk in small cells and numerically solve the Landau-Lifshitz-Gilbert…
Nonuniversality in the pair contact process with diffusion
Ronald Dickman, Marcio Argollo Ferreira de Menezes
We study the static and dynamic behavior of the one dimensional pair contact process with diffusion. Several critical exponents are found to vary with the diffusion rate, while the…
Using Entropy-Based Methods to Study General Constrained Parameter Optimization Problems
A. R. Lima, M. Argollo de Menezes
In this letter we propose the use of physics techniques for entropy determination on constrained parameter optimization problems. The main feature of such techniques, the construct…
Entropy-based analysis of the number partitioning problem
A. R. Lima, M. Argollo de Menezes
In this paper we apply the multicanonical method of statistical physics on the number-partitioning problem (NPP). This problem is a basic NP-hard problem from computer science, and…
Beyond the Hubbard-I Solution with a One-Pole Self-Energy at Half-Filling with the Moment Approach: Non-Linear Effects
J. J. Rodriguez-Nunez, M. A. de Menezes
We have postulated a single pole for the self-energy, , looking for the consequences on the one-particle Green function, in the Hubbard model. We find…
Beyond the Hubbard-I Solution with a One-Pole and a Two-Pole Self-Energy: Moment Approach
J. J. Rodriguez-Nunez, M. Argollo de Menezes
We have postulated a single pole for the self-energy looking for the consequences on the one-particle Green function, G(k,w), in the Hubbard model. We find that G(k,w) satisfies th…