Resumo Neste trabalho, apresentamos o método de Kerr-Schild para obter novas soluções das equaçõe... more Resumo Neste trabalho, apresentamos o método de Kerr-Schild para obter novas soluções das equações de campo de Einstein a partir de uma solução de fundo conhecida. São mostradas algumas das propriedades e uma introdução histórica do método, além da apresentação de alguns exemplos de sua aplicação.
We consider a six dimensional singular spacetime. Using the Israel conditions we derive the motio... more We consider a six dimensional singular spacetime. Using the Israel conditions we derive the motion of a 4-brane embedded in this setup and solve the full non-linear dynamics in the several possible scenarios. We also investigate the possible gravitational shortcuts.
In this work we consider black hole solutions in a five-dimensional gravity. We include a Gauss-B... more In this work we consider black hole solutions in a five-dimensional gravity. We include a Gauss-Bonnet term in the bulk and an induced gravity term on a 2-brane of codimension-2. Applying the Kerr-Schild methodfootnotetextA. H. Taub, Ann. of Phys. 220, 326 (1981). to a background known solutionfootnotetextB. Cuadros--Melgar, E. Papatonopoulos, M. Tsoukalas and V. Zamarias, Phys. Rev. Lett. 100, 221601 (2008). we have been able to generate additional solutions which include charge, angular momentum and a scalar field. In an effort to understand the geometric structure of these new spacetimes, we display a set of relevant geodesic families generated in these geometries. )
We aim at gathering information from gravitational interaction in the Universe, at energies where... more We aim at gathering information from gravitational interaction in the Universe, at energies where quantum gravity is required. In such a setup a dynamical membrane world in a space-time with scalar bulk matter described by domain walls, as well as a dynamical membrane world in empty Anti de Sitter space-time are analysed. We later investigate the possibility of having shortcuts
Resumo Neste trabalho, apresentamos o método de Kerr-Schild para obter novas soluções das equaçõe... more Resumo Neste trabalho, apresentamos o método de Kerr-Schild para obter novas soluções das equações de campo de Einstein a partir de uma solução de fundo conhecida. São mostradas algumas das propriedades e uma introdução histórica do método, além da apresentação de alguns exemplos de sua aplicação.
We consider a six dimensional singular spacetime. Using the Israel conditions we derive the motio... more We consider a six dimensional singular spacetime. Using the Israel conditions we derive the motion of a 4-brane embedded in this setup and solve the full non-linear dynamics in the several possible scenarios. We also investigate the possible gravitational shortcuts.
In this work we consider black hole solutions in a five-dimensional gravity. We include a Gauss-B... more In this work we consider black hole solutions in a five-dimensional gravity. We include a Gauss-Bonnet term in the bulk and an induced gravity term on a 2-brane of codimension-2. Applying the Kerr-Schild methodfootnotetextA. H. Taub, Ann. of Phys. 220, 326 (1981). to a background known solutionfootnotetextB. Cuadros--Melgar, E. Papatonopoulos, M. Tsoukalas and V. Zamarias, Phys. Rev. Lett. 100, 221601 (2008). we have been able to generate additional solutions which include charge, angular momentum and a scalar field. In an effort to understand the geometric structure of these new spacetimes, we display a set of relevant geodesic families generated in these geometries. )
We aim at gathering information from gravitational interaction in the Universe, at energies where... more We aim at gathering information from gravitational interaction in the Universe, at energies where quantum gravity is required. In such a setup a dynamical membrane world in a space-time with scalar bulk matter described by domain walls, as well as a dynamical membrane world in empty Anti de Sitter space-time are analysed. We later investigate the possibility of having shortcuts
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