54 citations · 237 across the 16 of their papers we have counts for
16 papers
A spectral investigation of criticality and crossover effects in two and three dimensions: Short timescales with small systems in minute random matrices
Eliseu Venites Filho, Roberto da Silva, José Roberto Drugowich de Felício
Random matrix theory, particularly using matrices akin to the Wishart ensemble, has proven successful in elucidating the thermodynamic characteristics of critical behavior in spin…
Mean-field criticality explained by random matrices theory
Roberto da Silva, Heitor C. Fernandes, Eliseu Venites Filho +2
How a system initially at infinite temperature responds when suddenly placed at finite temperatures is a way to check the existence of phase transitions. It has been shown in [R. d…
Efficient Computational method using random matrices describing critical thermodynamics
Roberto da Silva, Eliseu Venites, Sandra D. Prado +1
Our research highlights the effectiveness of utilizing matrices akin to Wishart matrices, derived from magnetization time series data under specific dynamics, to elucidate phase tr…
Transfer matrix in counting problems made easy
Roberto da Silva, Silvio R. Dahmen, J. R. Drugowich de Felício
The transfer matrix is a powerful technique that can be applied to statistical mechanics systems as, for example, in the calculus of the entropy of the ice model. One interesting w…
Non-equilibrium critical dynamics of the two-dimensional Ashkin-Teller model at the Baxter line
H. A. Fernandes, R. da Silva, A. A. Caparica +1
We investigate the short-time universal behavior of the two dimensional Ashkin-Teller model at the Baxter line by performing time-dependent Monte Carlo Simulations. First, as prepa…
Novel considerations about the non-equilibrium regime of the tricritical point in a metamagnetic model: localization and tricritical exponents
Roberto da Silva, Henrique Almeida Fernandes, José Roberto Drugowich de Felício +1
We have investigated the time-dependent regime of a two-dimensional metamagnetic model at its tricritical point via Monte Carlo simulations. First of all, we obtained the temperatu…
Nonequilibrium scaling explorations on a 2D Z(5)-symmetric model
Roberto da Silva, Henrique A. Fernandes, J. R. Drugowich de Felicio
We have investigated the dynamic critical behavior of the two-dimensional Z(5)-symmetric spin model by using short-time Monte Carlo (MC) simulations. We have obtained estimates of…
Short-time dynamics of polypeptides
Everaldo Arashiro, J. R. Drugowich de Felício, Ulrich H. E. Hansmann
The authors study the short-time dynamics of helix-forming polypeptide chains using an all-atom representation of the molecules and an implicit solvation model to approximate the i…
A comparative study of the dynamic critical behavior of the four-state Potts like models
E. Arashiro, H. A. Fernandes, J. R. Drugowich de Felicio
We investigate the short-time critical dynamics of the Baxter-Wu (BW) and Turban (3TU) models to estimate their global persistence exponent . We conclude that this new…
Stochastic dynamics of coupled systems and spreading of damage
T. Tome, E. Arashiro, J. R. Drugowich de Felicio +1
We study the spreading of damage in the one-dimensional Ising model by means of the stochastic dynamics resulting from coupling the system and its replica by a family of algorithms…
Global persistence exponent of the two-dimensional Blume-Capel model
Roberto da Silva, Nelson A. Alves, J. R. Drugowich de Felicio
The global persistence exponent is calculated for the two-dimensional Blume-Capel model following a quench to the critical point from both disordered states and such with sma…
Short-Time Dynamics of an Ising Model with Competing Interactions
N. Alves, J. R. Drugowich de Felicio
In this work the two-dimensional Ising model with nearest- and next-nearest-neighbor interactions is revisited. We obtain the dynamic critical exponents and from short-time…
Universality and scaling study of the critical behavior of the two-dimensional Blume-Capel model in short-time dynamics
Roberto da Silva, Nelson A. Alves, J. R. Drugowich de Felicio
In this paper we study the short-time behavior of the Blume-Capel model at the tricritical point as well as along the second order critical line. Dynamic and static exponents are e…
Mixed initial conditions to estimate the dynamic critical exponent in short-time Monte Carlo simulation
Roberto da Silva, Nelson A. Alves, J. R. Drugowich de Felicio
We explore the initial conditions in short-time critical dynamics to propose a new method to evaluate the dynamic exponent z. Estimates are obtained with high precision for 2D Isin…
Dynamic critical exponents of the Ising model with multispin interactions
C. S. Simoes, J. R. Drugowich de Felicio
We revisit the short-time dynamics of 2D Ising model with three spin interactions in one direction and estimate the critical exponents and . Taking properly into a…
Nonuniversality in short-time critical dynamics
C. S. Simoes, J. R. Drugowich de Felicio
We study behaviour of dynamical critical exponents of the two-dimensional Ising model with a line of defects. Simulations done at an early time (first 100 Monte Carlo steps) reveal…