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arXiv · 0902.1392

Dirac-field model of inflation in Einstein-Cartan theory

Tomoki Watanabe
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Abstract

We present a cosmological model in which a single Dirac field with a flat potential can give rise to inflation within the framework of the Einstein-Cartan theory. It is shown that our Dirac-field model leads to a nearly scale-invariant spectrum of density fluctuations owing to the spin-interaction which naturally arises from the field equations of the Einstein-Cartan theory.

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Tomoki Watanabe. 2009-02-09. Dirac-field model of inflation in Einstein-Cartan theory. https://arxiv.org/abs/0902.1392

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