|標題:||Anisotropic power-law solutions for a supersymmetry Dirac-Born-Infeld theory|
|作者:||Do, Tuan Q.|
Kao, W. F.
Institute of Physics
|關鍵字:||Dirac-Born-Infeld theory;expanding universes;Bianchi spaces|
|摘要:||A new set of Bianchi type I power-law expanding solutions is obtained for a supersymmetric Dirac-Born-Infeld (SDBI) theory coupled to a gauge field. Stability analysis is also performed to show that this set of power-law expanding solutions is stable. In particular, this set of power-law solutions provides an explicit example to the role played by the supersymmetry correction term. We also show by a general approach that any stable anisotropic solution of SDBI model will turn unstable when a phantom field is introduced. We also show that the result of the scalar perturbation indicates that the SDBI model is a realistic model.|
|期刊:||CLASSICAL AND QUANTUM GRAVITY|