Inflation with $$f(R,\phi )$$f(R,Ï•) in Jordan frame
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DOI: 10.1007/s10714-018-2410-4
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… read more here.
Keywords: inflation phi; frame; jordan frame; phi jordan ... See more keywords
Fifth forces and broken scale symmetries in the Jordan frame
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2022/02/016
Abstract: We study the origin of fifth forces in scalar-tensor theories of gravity in the so-called Jordan frame, where the modifications to the gravitational sector are manifest. We focus on theories of Brans-Dicke type in which… read more here.
Keywords: fifth force; gravitational sector; frame; fifth forces ... See more keywords