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Inflation driven by dark spinor and Higgs fields

Joohan Lee

Department of Physics, University of Seoul, Seoul 130-743, Korea

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Tae Hoon Lee

Department of Physics and Institute of Natural Sciences, Soongsil University, Seoul 156-743, Korea

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, and

Phillial Oh

Department of Physics and Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Korea

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https://doi.org/10.1142/S0218271814440064Cited by:0 (Source: Crossref)

Abstract

In this paper, we consider dark spinor and Higgs fields coupled to gravity and calculate their contributions to the energy density and pressure in Friedmann–Robertson–Walker spacetime. We seek solutions of the fields to yield a de Sitter universe and investigate stability properties of the solutions using linear approximation. We discuss the possibility that the inflationary period of our universe can be described by a combination of the dark spinor and Higgs fields.

Keywords:

PACS: 95.35.+d, 98.80.Cq, 14.80.Bn

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