Ja n 20 02 On the stability of de Sitter inflationary background solution in scalar-tensor cosmology

  • By L. C. Garcia de Andrade
  • Published 2002


The stability of de Sitter metric in spacetimes where inflaton fields are non-minimally coupled to propagating torsion is investigated. It is shown that the de Sitter background metric is unstable against small perturbations. Axionic torsion is generated by inflaton fluctuations and the analysis of cosmological perturbations in Einstein-Cartan-Klein-Gordon… (More)


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