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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References
N. D. Birrell and P. C. Davies, Quantum Fields in Curved Space, Cambridge Univ. Press, Cambridge (1984).
A. D. Linde, Particle Physics and Inflationary Cosmology, H. Feshbach (ed.), Harwood Academic, New York (1990).
V. A. Belinskii, L. P. Grishchuk, Ya. B. Zel’dovich, and I. M. Khalatnikov, Zh. Éksp. Teor. Fiz.,89, 346 (1985).
V. A. Belinskii and I. M. Khalatnikov, Zh. Éksp. Teor. Fiz.,93, 784 (1987).
S. L. Parnovskii, Zh. Éksp. Teor. Fiz.,103, 337 (1993).
I. L. Buchbinder, Fortschr. Phys.,34, 605 (1986).
I. L. Buchbinder, S. D. Odintsov, and O. A. Fonarev, Mod. Phys. Lett.,4A, 2713 (1989); Izv. Vyssh. Uchebn. Zaved., Fiz., No. 9, 74 (1990).
E. I. Permyakov, Astron. Zh.,70, 913 (1993).
L. D. Landau and E. M. Lifshitz, Field Theory [in Russian], Nauka, Moscow (1973) [The Classical Theory of Fields, 4th ed., Pergamon Press, New York (1976)].
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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