Gravitacao Modificada E Metrica De Godel
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1. Violação de Lorentz e teoria de gravitação modificada
In this thesis we study the Lorentz and CPT symmetries breaking in a 4D fourfermions model at zero and at finite temperature. At zero temperature we find that these symmetries can be violated, but at finite temperature we show that there is a critical temperature at which the Lorentz and CPT symmetries are restored. We show that it is possible obtain the Fri
Publicado em: 2010