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Paulo Michel L. T. da Silva

Publications and source records attributed to Paulo Michel L. T. da Silva.

2 recordsLinked to original sources

f(R)-Einstein-Palatini Formalism and smooth branes

In this work, we present the f(R)-Einstein-Palatini formalism in arbitrary dimensions and the study of consistency applied to brane models, the so-called braneworld sum rules. We show that it is possible a scenario of thick branes in five dimensions with compact extra dimension in the framework of the f(R)-Einstein-Palatini theory by the accomplishment of an assertive criteria.

hep-th↗

Friedmann-Robertson-Walker Braneworlds

We study the cosmological evolution with nonsingular branes generated by a bulk scalar field coupled to gravity. The specific setup investigated leads to branes with a time-dependent warp factor. We calculate the effective Hubble parameter and the effective scale factor for the FRW branes obtained solutions. The spatially dependent branes solutions also were found.

gr-qc↗