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Gravitational stability of inflatons and torsion in Einstein-Cartan-Klein-Gordon Cosmology

L. C. Garcia de Andrade
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Abstract

Gravitational stability of torsion and inflaton potential in a four-dimensional spacetime de Sitter solution in scalar-tensor cosmology where Cartan torsion propagates is investigated in detail. Inflaton and torsion evolution equations are derived by making use of a Lagrangean method. Stable and unstable modes for torsion and inflatons are found. Present astrophysical observations favour a stable mode for torsion since this would explain why no relic torsion imprint has been found on the Cosmic Background Radiation in the universe.

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L. C. Garcia de Andrade. 2002-01-14. Gravitational stability of inflatons and torsion in Einstein-Cartan-Klein-Gordon Cosmology. https://arxiv.org/abs/hep-th/0201082

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