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A note on wavemap-tensor cosmologies

Spiros Cotsakis·John Miritzis
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Abstract

We examine theories of gravity which include finitely many coupled scalar fields with arbitrary couplings to the curvature (wavemaps). We show that the most general scalar-tensor $σ$-model action is conformally equivalent to general relativity with a minimally coupled wavemap with a particular target metric. Inflation on the source manifold is then shown to occur in a novel way due to the combined effect of arbitrary curvature couplings and wavemap self-interactions. A new interpretation of the conformal equivalence theorem proved for such `wavemap-tensor' theories through brane-bulk dynamics is also discussed.

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Spiros Cotsakis, John Miritzis. 2001-07-31. A note on wavemap-tensor cosmologies. https://doi.org/10.1007/978-94-010-0622-4_7

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