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Inflation in cosmological models with a non-minimally coupled, massless scalar field

  • Physics of Elementary Particles and Field Theory
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Abstract

A homogeneous, spatially flat cosmological model induced by a massless scalar field is investigated. The parameter ξ of coupling of the field with the curvature can take any value. It is shown that the range of values of ξ is divided into three regions, ξ<0, 0<ξ<1/6, and ξ>1/6, each of which is characterized by the behavior of the scale factor in it. The points ξ=0 and ξ=1/6 are singular. Stages with exponential and power-law inflation are found in the ranges 0<ξ<1/6 and ξ>1/6. An exponential inflationary stage with acceptable cosmological consequences can occur for small positive ξ.

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Additional information

Kazan’ State Pedagogical University. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 3, pp. 53–57, March, 1997.

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Permyakov, E.I. Inflation in cosmological models with a non-minimally coupled, massless scalar field. Russ Phys J 40, 265–269 (1997). https://doi.org/10.1007/BF02510827

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  • DOI: https://doi.org/10.1007/BF02510827

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