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Non-minimal scalar-tensor theories
Ayuso, Ismael...
Non-minimal scalar-tensor theories by Ayuso, Ismael ( Author )
N.A
06-11-2014
We compute the spectrum of scalar models with a general coupling to the scalar curvature. We find that the perturbative states of these theories are given by two massive spin-0 modes in addition to one massless spin-2 state. This latter mode can be identified with the standard graviton field. Indeed, we are able to define an Einstein frame, where the dynamics of the massless spin-2 graviton is the one associated with the Einstein-Hilbert action. We also explore the interactions of all these degrees of freedom in the mentioned frame, since part of the coupling structure can be anticipated by geometrical arguments.
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Article
pdf
36.88 KB
English
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MYR 0.01
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https://arxiv.org/abs/1411.1653
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