813 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centro Brasileiro de Pesquisas FísicasBR57 papers
- Santa Fe InstituteUS33 papers
- Pontifícia Universidade Católica do Rio de JaneiroBR24 papers
- Universidade Federal FluminenseBR21 papers
- Universidade de São PauloBR20 papers
- Instituto de Física de São CarlosBR11 papers
- Universidade Federal de ViçosaBR11 papers
- Universidade Federal do Rio Grande do SulBR11 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR8 papers
- Conselho Nacional de Desenvolvimento Científico e TecnológicoBR8 papers
- Universidade Estadual de MaringáBR8 papers
- Complexity Science HubAT7 papers
53 papers · 1 filter
Imperfect bifurcations in opinion dynamics under external fields
Francisco Freitas, Allan R. Vieira, Celia Anteneodo
We investigate, through a kinetic-exchange model, the impact that an external field, like advertising and propaganda, has on opinion dynamics. We address the situations where two o…
Dynamical robustness of discrete conservative systems: Harper and generalized standard maps
Ugur Tirnakli, Constantino Tsallis, Kivanc Cetin
In recent years, statistical characterization of the discrete conservative dynamical systems (more precisely, paradigmatic examples of area-preserving maps such as the standard and…
Memory and irreversibility on two-dimensional overdamped Brownian dynamics
Eduardo dos S. Nascimento, Welles A. M. Morgado
We consider the effects of memory on the stationary behavior of a two-dimensional Langevin dynamics in a confining potential. The system is treated in an overdamped approximation a…
Wealth Distribution Models with Regulations: Dynamics and Equilibria
Ben-Hur Francisco Cardoso, Sebastián Gonçalves, José Roberto Iglesias
Simple agent based exchange models are a commonplace in the study of wealth distribution in an artificial economy. Generally, in a system that is composed of many agents characteri…
Order-disorder transition in a two-dimensional associating lattice gas
A. P. Furlan, Tiago J. Oliveira, Jürgen F. Stilck +1
We study an associating lattice gas (ALG) using Monte Carlo simulation and solutions on Husimi lattices. In this model, the molecules have an orientational degree of freedom and th…
Hamiltonian dynamics of the SIS epidemic model with stochastic fluctuations
Gilberto M. Nakamura, Alexandre S. Martinez
Empirical records of epidemics reveal that fluctuations are important factors for the spread and prevalence of infectious diseases. The exact manner in which fluctuations affect sp…
Local roughness exponent in the nonlinear molecular-beam-epitaxy universality class in one-dimension
Edwin E. Mozo Luis, Thiago A. de Assis, Silvio C. Ferreira +1
We report local roughness exponents, , for three interface growth models in one dimension which are believed to belong the non-linear molecular-beam-epitaxy (nMBE)…
Scaling properties of d-dimensional complex networks
Samuraí Brito, Thiago C. Nunes, Luciano R. da Silva +1
The area of networks is very interdisciplinary and exhibits many applications in several fields of science. Nevertheless, there are few studies focusing on geographically located $…
Validity and Failure of the Boltzmann Weight
Leonardo J. L. Cirto, Antonio Rodríguez, Fernando D. Nobre +1
The dynamics and thermostatistics of a classical inertial XY model, characterized by long-range interactions, are investigated on -dimensional lattices ( and 3), through…
Overdamped dynamics of particles with repulsive power-law interactions
André A. Moreira, César M. Vieira, Humberto A. Carmona +2
We investigate the dynamics of overdamped -dimensional systems of particles repulsively interacting through short-ranged power-law potentials, . We sho…
Eden model with nonlocal growth rules and the kinetic roughening in biological systems
Silvia N. Santalla, Silvio C. Ferreira
We investigate an off-lattice Eden model where the growth of new cells is performed with a probability dependent on the availability of resources coming externally towards the grow…
Impact of rough potentials in rocked ratchet performance
S. Camargo, C. Anteneodo
We consider thermal ratchets modeled by overdamped Brownian motion in a spatially periodic potential with a tilting process, both unbiased on average. We investigate the impact of…
Role of dimensionality in preferential attachment growth in the Bianconi-Barabási model
Thiago C. Nunes, Samurai Brito, Luciano R. da Silva +1
Scale-free networks are quite popular nowadays since many systems are well represented by such structures. In order to study these systems, several models were proposed. However, m…
Thermal conductance of the coupled-rotator chain: Influence of temperature and size
Yunyun Li, Nianbei Li, Ugur Tirnakli +2
Thermal conductance of a homogeneous 1D nonlinear lattice system with neareast neighbor interactions has recently been computationally studied in detail by Li et al [Eur. Phys. J.…
Statistical characterization of the standard map
Guiomar Ruiz, Ugur Tirnakli, Ernesto P. Borges +1
The standard map, paradigmatic conservative system in the phase space, has been recently shown to exhibit interesting statistical behaviors directly related to the value of…
Quantum and thermal melting of stripe forming systems with competing long ranged interactions
Alejandro Mendoza-Coto, Daniel G. Barci, Daniel A. Stariolo
We study the quantum melting of stripe phases in models with competing short range and long range interactions decaying with distance as in two space dimensions. At zero te…
Spin-glass phase transition and behavior of nonlinear susceptibility in the Sherrington-Kirkpatrick model with random fields
C. V. Morais, F. M. Zimmer, M. J. Lazo +2
The behavior of the nonlinear susceptibility and its relation to the spin-glass transition temperature , in the presence of random fields, are investigated. To accomplis…
Generalization of the possible algebraic basis of -triplets
Constantino Tsallis
The so called -triplets were conjectured in 2004 and then found in nature in 2005. A relevant further step was achieved in 2005 when the possibility was advanced that they could…
On the connection between linear combination of entropies and linear combination of extremizing distributions
Gabriele Sicuro, Debarshee Bagchi, Constantino Tsallis
We analyze the distribution that extremizes a linear combination of the Boltzmann--Gibbs entropy and the nonadditive -entropy. We show that this distribution can be expressed in…
Nature of the collapse transition in interacting self-avoiding trails
Tiago J. Oliveira, Jurgen F. Stilck
We study the interacting self-avoiding trail (ISAT) model on a Bethe lattice of general coordination and on a Husimi lattice built with squares and coordination . The exac…
Role of dimensionality in complex networks: Connection with nonextensive statistics
S. G. A. Brito, L. R. da Silva, Constantino Tsallis
Deep connections are known to exist between scale-free networks and non-Gibbsian statistics. For example, typical degree distributions at the thermodynamical limit are of the form…
Sensitivity to initial conditions of a -dimensional long-range-interacting quartic Fermi-Pasta-Ulam model: Universal scaling
Debarshee Bagchi, Constantino Tsallis
We introduce a generalized -dimensional Fermi-Pasta-Ulam (FPU) model in presence of long-range interactions, and perform a first-principle study of its chaos for throu…
A new entropy based on a group-theoretical structure
Evaldo M. F. Curado, Piergiulio Tempesta, Constantino Tsallis
A multi-parametric version of the nonadditive entropy is introduced. This new entropic form, denoted by , possesses many interesting statistical properties, and…
On the robustness of the -Gaussian family
Gabriele Sicuro, Piergiulio Tempesta, Antonio Rodríguez +1
We introduce three deformations, called -, - and -deformation respectively, of a -body probabilistic model, first proposed by Rodríguez et al. (2008), having -Gaussi…