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We consider an f(R) action that is non-minimally coupled to a massive scalar field. The model closely resembles scalar–tensor theory and by conformal transformation can be transformed to Einstein frame.… Click to show full abstract
We consider an f(R) action that is non-minimally coupled to a massive scalar field. The model closely resembles scalar–tensor theory and by conformal transformation can be transformed to Einstein frame. To avoid the ambiguity of the frame dependence, we obtain an exact analytical solution in Jordan frame and show that the model leads to a period of accelerated expansion with an exit. Further, we compute the scalar and tensor power spectrum for the model and compare them with observations.
Keywords:
inflation phi;
frame;
jordan frame;
phi jordan;
model
Journal Title: General Relativity and Gravitation
Year Published: 2017
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Journal Title: General Relativity and Gravitation
Year Published: 2017
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!