Stability of the anisotropically inflating Bianchi type VI expanding solutions

W. F. Kao*, Ing Chen Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


A special class of the Bianchi type VI expanding solutions was speculated to break the cosmic no-hair theorem that will not approach the late-time de Sitter solution. We will show that an unstable mode always exists when the perturbation of the field equations is applied to the system. In addition to a model-independent perturbation formula, a simplification is also achieved by the introduction of a δR=0 solution good for quadratic models in all Bianchi spaces. The result shows that this special class of anisotropically expanding solutions is unstable.

Original languageEnglish
Article number063004
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number6
StatePublished - 21 Mar 2011

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