Gravitação modificada pelos efeitos quânticos e as soluções inomogêneas do tipo Kasner.

Abstract

In this work will be seen gravitation theory elements modified by quantum effects and a pro-posal for inhomogeneous metric type Kasner. First, it will address the semiclassical theory, con-sisting in this quantization of matter fields, leaving the gravitational field as a classical external field. Then will be seen the effective action induced by anomaly as a result of energy-momentum tensor trace not be null in the quantum level. Finally, the proposal of the inhomogeneous solution of the Kasner type and future prospects for this solution will be considered