9 research outputs found
Pseudogap and antiferromagnetic correlations in the Hubbard model
Using the dynamical cluster approximation and quantum monte carlo we
calculate the single-particle spectra of the Hubbard model with next-nearest
neighbor hopping . In the underdoped region, we find that the pseudogap
along the zone diagonal in the electron doped systems is due to long range
antiferromagnetic correlations. The physics in the proximity of is
dramatically influenced by and determined by the short range correlations.
The effect of on the low energy ARPES spectra is weak except close to the
zone edge. The short range correlations are sufficient to yield a pseudogap
signal in the magnetic susceptibility, produce a concomitant gap in the
single-particle spectra near but not necessarily at a location in
the proximity of Fermi surface.Comment: 5 pages, 4 figure
Comunicação funcional : aplicativo de apoio à interlocução social para deficientes intelectuais não alfabetizados
Trabalho de ConclusĂŁo de Curso (graduação)—Universidade de BrasĂlia, Instituto de CiĂŞncias Exatas, Departamento de CiĂŞncia da Computação, 2018.Este trabalho descreve a concepção e o desenvolvimento de um aplicativo intitulado Comunicação Funcional, para aparelhos celulares. Sua proposta Ă© servir de apoio Ă interlocução social para deficientes intelectuais nĂŁo alfabetizados. O mesmo foi validado em escolas, em casos reais de uso, por professores especializados. É um projeto sem fins lucrativos, tendo sido desenvolvido com tecnologias abertas.This project decribes the conceiving and development process of an app titled Comunicação Funcional. Designed for smartphones, its main proposition is to support social dialogue for non-literate users with intellectual disabilities. The app has been validated by specialized teachers in real use cases at partner institutions. This is a non-profit and public project and the app was developed with open source technology