CV Lattes
ResearcherID
ORCID
Google Scholar Citations
Universidade de São Paulo (USP). Instituto de Física (IF) (Institutional affiliation from the last research proposal) Birthplace: Brazil
BSc in Physics from Universidade Federal do Ceará (1995), MSc in Physics from Universidade Federal do Ceará (1998) and PhD in Physics from Universidade de São Paulo (2002). Associate Professor at Instituto de Física, Universidade de São Paulo, Brazil, working on the statistical physics of disordered systems. (Source: Lattes Curriculum)
| News published in Agência FAPESP Newsletter about the researcher |
| More itemsLess items |
| TITULO |
| Articles published in other media outlets ( ): |
| More itemsLess items |
| VEICULO: TITULO (DATA) |
| VEICULO: TITULO (DATA) |
We aim at investigating various transport and dynamical properties of low-dimensional aperiodic systems. The aperiodicity is generated via the modulation of local parameters following sequences obtained by deterministic inflation rules. Such approach allows one to control the induced geometrical fluctuations, characterized by a wandering exponent \omega, offering a generalization of the m…
Previous Regular Research Support (Apoio Regular à Pesquisa) granted to the Applicant's research group were essential for the research activities, which experienced significant quantitative and qualitative improvement in recent years. The present Proposal is essential to keep this trajectory as it will adequate the computational infrastructure of the group and also provide important funds…
We aim at studying the dynamical properties of quantum spin chains with deterministic aperiodic couplings. We will employ real-space renormalization-group techniques as well as exact-diagonalization computational methods to investigate systems such as the spin-\frac{1}{2}XXZ chain and the quantum Ising chain, focusing on analyzing the dynamical response to a quantum quench, in order to be…
We aim at studying effects of deterministic aperiodicity on the lowtemperature properties of spin-1 Heisenberg chains and on the quantum phase transitions of XY spin-1/2 chains. Our approach makes use of extensions of the Ma-Dasgupta-Hu real-space renormalizationgroup technique, supplemented by numerical calculations based on quantum Monte Carlo and free-fermion methods, in order to deter…
We intend to investigate localization phenomena and dynamical phase transitions in quantum chains with deterministic aperiodic couplings. We will use real-space renormalization-group techniques and density-matrix renormalization-group computational methods in order to investigate quantum (Heisenberg and Potts) spin chains and the fermionic Hubbard chain, focusing on analyzing the emergenc…
Our aim is to perform an investigation of microscopic models for diluted nematic liquid crystals. Such models are formulated on a lattice whose sites can be occupied by anisometric elements which interact with each other so as to favor uniaxial or biaxial nematic ordering. Our interest is to evaluate the characteristics of the phase diagrams of the models as a function of the temperature …
We aim at investigating microscopic models for nematic liquid crystals which are able to produce stable biaxial phases, characterized by the existence of two spatial directions along which orientational order of the microscopic elements is observed. We will explore two distinct classes of models. For the first class, we assume that the system is microscopically characterized by a mixture …
The present project aims at investigating the effects of disorder, invariably present in real systems, on crack propagation in media subject to cyclic-load fatigue. Based on recent work [A. P. Vieira, J. S. Andrade, H. J. Herrmann, Phys. Rev. Lett. 100, 195503 (2008)], it is possible to start from a micrometric approach in order to analyze the relation between a local damage-accumulation …
(Only some records are available in English at this moment)
The unique properties of liquid crystals, originating in orientational order, continue to lead to the discovery of new soft materials with astounding physical properties and tremendous possibilities for applications. Nanoparticle assemblies with emerging use in photonics applications form liquid crystal phases, yet even basic understanding of some aspects of their behavior is lacking. Suc…
The project aims at performing, via Quantum Monte Carlo simulations, a thorough study of the thermodynamic properties and entanglement entropies of spin-1 Heisenberg chains at low temperatures, in the presence of disorder. The focus will be on: (i) the numerical confirmation of various scaling forms and critical exponents predicted for the chain with aperiodic but deterministic disorder b…
| 1 / 1 | Ongoing grants |
| 4 / 3 | Completed research grants |
| 2 / 2 | Ongoing scholarships in Brazil |
| 7 / 4 | Completed scholarships in Brazil |
| 2 / 2 | Completed scholarships abroad |
| 16 / 12 | All research grants and scholarships |
| Associated processes | |