Anisotropic perturbation of de Sitter space |
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| Authors: | WF Kao |
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| Institution: | (1) Institute of Physics, Chiao Tung University, Hsinchu, Taiwan |
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| Abstract: | A model-independent expression for the Friedmann equation in Bianchi type spaces is derived. In addition, a model-independent
stability analysis of the higher curvature de Sitter solution is discussed. Stability conditions of the de Sitter solution
are derived explicitly for a cubic model with interesting effects. It is known that quadratic terms do not contribute to this
de Sitter background solution. Higher curvature terms are all critical to the stability of the de Sitter space.
PACS 98.80.Cq; 04.20.-q; 04.20.Cv |
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| Keywords: | |
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