43 citations · 185 across the 10 of their papers we have counts for
10 papers
Quantum walks with spatiotemporal fractal disorder
Marcelo A. Pires, Caio B. Naves, Diogo O. Soares-Pinto +1
We investigate the transport and entanglement properties exhibited by quantum walks with coin operators concatenated in a space-time fractal structure. Inspired by recent developme…
Quantum walks in two dimensions: controlling directional spreading with entangling coins and tunable disordered step operator
Caio B. Naves, Marcelo A. Pires, Diogo O. Soares-Pinto +1
We study a 2-D disordered time-discrete quantum walk based on 1-D `generalized elephant quantum walk' where an entangling coin operator is assumed and which paves the way to a new…
Enhancing entanglement with the generalized elephant quantum walk from localized and delocalized states
Caio B. Naves, Marcelo A. Pires, Diogo O. Soares-Pinto +1
Recently, it was introduced a generalization of a nonstandard step operator named the elephant quantum walk (EQW). With proper statistical distribution for the steps, that generali…
Diffusion plays an unusual role in ecological quasi-neutral competition in metapopulations
Marcelo A. Pires, Nuno Crokidakis, Silvio M. Duarte Queirós
We investigate the phenomenology emerging from a 2-species dynamics under the scenario of a quasi-neutral competition within a metapopulation framework. We employ stochastic and de…
Negative correlations can play a positive role in disordered quantum walks
Marcelo A. Pires, Sílvio M. Duarte Queirós
We investigate the emerging properties of quantum walks with temporal disorder engineered from a binary Markov chain with tailored correlation, , and disorder strength, . We…
Hysteresis and disorder-induced order in continuous kinetic-like opinion dynamics in complex networks
A. L. Oestereich, M. A. Pires, S. M. Duarte Queirós +1
In this work we tackle a kinetic-like model of opinions dynamics in a networked population endued with a quenched plurality and polarization. Additionally, we consider pairwise int…
Quantum walks with sequential aperiodic jumps
Marcelo A. Pires, Sílvio M. Duarte Queirós
We analyze a set of discrete-time quantum walks for which the displacements on a chain follow binary aperiodic jumps according to three paradigmatic sequences: Fibonacci, Thue-Mors…
Multiple transitions between normal and hyperballistic diffusion in quantum walks with time-dependent jumps
Marcelo A. Pires, Giuseppe Di Molfetta, Sílvio M. Duarte Queirós
We extend to the gamut of functional forms of the probability distribution of the time-dependent step-length a previous model dubbed Elephant Quantum Walk, which considers a unifor…
Sudden transitions in coupled opinion and epidemic dynamics with vaccination
Marcelo A. Pires, André L. Oestereich, Nuno Crokidakis
This work consists of an epidemic model with vaccination coupled with an opinion dynamics. Our objective was to study how disease risk perception can influence opinions about vacci…
Dynamics of epidemic spreading with vaccination: impact of social pressure and engagement
Marcelo A. Pires, Nuno Crokidakis
In this work we consider a model of epidemic spreading coupled with an opinion dynamics in a fully-connected population. Regarding the opinion dynamics, the individuals may be in t…