Teorias duais massivas de spin-3 em D=2+1: Elias Leite Mendonça. -

Pós-graduação em Física - FEG

Type-II defects in integrable classical field theories

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Método do hamiltoniano termodinamicamente equivalente para sistemas de muitos corpos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

De sitter relativity: foundationss and some physical implications

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Dinâmica gravitacional em modelo de 3-brana aplicada às curvas de rotação de galáxias

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Densidade de energia e força de radiação sobre fronteiras em movimento para estados arbitrários do campo: aplicação ao estado coerente

No presente trabalho foi considerado um campo escalar real não massivo em um espaço-tempo bidimensional, satisfazendo à condição de fronteira Dirichlet ou Neumann na posição instantânea de uma fronteira em movimento. Para uma lei de movimento relativística, foi mostrado que as condiçõoes de fronteira Dirichlet e Neumann produzem a mesma força de radiação sobre um espelho em movimento quando o estado inicial do campo é invariante sobre translações temporais. Obtemos as fórmulas exatas para a densidade de energia do campo e da força de radiação na fronteira para os estados de vácuo, coerente e comprimido. No limite não-relativistico, os resultados obtidos coincidem com os encontrados na literatura. Também foi investigado o campo dentro de uma cavidade oscilante. Considerando as condiçõoes de fronteira Neumann e Dirichlet, escreveu-se a fórmulas exata para a densidade de energia dentro de uma cavidade não-estática, para um estado inicial arbitrário do campo. Tomando como base a equação de Moore, nós calculamos recursivamente a densidade de energia e investigamos a evolução temporal da densidade de energia para o estado coerente do campo.

Anti-de Sitter holography in di?erent coordinates

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Dipolo e escoamento uniforme: escoamento em torno de um cilindro circular

The study of movements of ideals fluids is more simple that the viscous fluids because do not have the presence of tension of shear. The normal tensions are the one that must be considered in this analysis. The theory corresponding to these flows is the same used in other fields of the physics called Theory of Potentials Fields, which the vector identity is fundamental. Any flow into irrotational (null vorticity) physically possibly has a current function and a potential of velocity that satisfied the equation of Laplace. Reciprocally, any solution of equation of Laplace represents a current function or a potential of velocity of a flow into physically possible. Once the equation of Laplace is linear, the addiction of any numbers of solutions is also a solution. So, several potentials flows into can be constructed superposing configurations of elementary flows into. The purpose of the superposition of elementary flows into is a production of similar configurations to those of practical interest. The combination of mathematical elegancy with utility in the potential flow into attracted many for its study. Some of the most famous mathematician of history studied the theory and application of “hydrodynamic”, how was called the potential fluid into before 1900

Quantum Aspects of Solitons and Deformations on Ad'S IND. 4'x C'P POT.3' ('S POT. 7')

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Equações de Painlevé mistas e modelo PIII-PV simétrico

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

O modelo de Schrödinger não linear com um defeito integrável

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Some aspects of abelian and nonabelian T-duality and the gauge/gravity correspondence

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Compactificação alternativa de dimensões extras em gravitação de Brans-Dicke

After a brief introduction of some gravitational aspects of the Randall-Sundrum braneworld model as well as of the Brans-Dicke (BD) gravity, we propose two braneworld models using the, local and global, cosmic strings in the BD framework in order to generate all the bulk/brane structure. The final scenario is composed, in both cases, of a warped 4-brane with topology 'R POT. 4' x 'S POT. 1' and one extra dimension transverse to the brane. After that, we analyze the founded models in the scope of the Gauss-Codazzi formalism, with and without the imposition of 'Z IND. 2' symmetry on the brane

A gauge theory for continuous spin particles

In this dissertation we explore the features of a Gauge Field Theory formulation for continuous spin particles (CSP). To make our discussion as self-contained as possible, we begin by introducing all the basics of Group Theory - and representation theory - which are necessary to understand where the CSP come from. We then apply what we learn from Group Theory to the study of the Lorentz and Poincaré groups, to the point where we are able to construct the CSP representation. Finally, after a brief review of the Higher-Spin formalism, through the Schwinger-Fronsdal actions, we enter the realm of CSP Field Theory. We study and explore all the local symmetries of the CSP action, as well as all of the nuances associated with the introduction of an enlarged spacetime, which is used to formulate the CSP action. We end our discussion by showing that the physical contents of the CSP action are precisely what we expected them to be, in comparison to our Group Theoretical approach.

Francisco Campos and the Brazilian Authoritarianism. A Hidden Dialogue with Carl Schmitt

This article propose to analyse the theoretical sources which constitutes the political culture of the Brazilian authoritarianism in the 20th century, principally in the work of Francisco Campos and his connection with the “integralismo” and its catholic conservatism ways. The hypothesis is that the mentioned connection which had inspired the ideological political culture which make possible all the sources and historical conditions to the implementation of the Brazilian dictatorship in the year 1964. This article has analysed the facist inspiration of the Campos´s theory and how it has happened, his hidden dialogue with Carl Schmitt, settling issuing lines of understanding on contemporary authoritarianism whose spreading still proceed, but now standing under new figures, discourses, rhetorics, symbologies and enemies.