A note on viability of nonminimally coupled f(R) theory
2016 (English)In: General Relativity and Gravitation, ISSN 0001-7701, E-ISSN 1572-9532, Vol. 48, no 7, 97Article in journal (Refereed) PublishedText
Consistency conditions for nonminimally coupled f(R) theories have been derived by requiring the absence of tachyons and instabilities in the scalar fluctuations. This note confirms these results and clarifies a subtlety regarding different definitions of sound speeds.
Place, publisher, year, edition, pages
2016. Vol. 48, no 7, 97
IdentifiersURN: urn:nbn:se:kth:diva-189794DOI: 10.1007/s10714-016-2087-5ISI: 000378561600015ScopusID: 2-s2.0-84975819727OAI: oai:DiVA.org:kth-189794DiVA: diva2:949545
QC 201607202016-07-202016-07-152016-07-20Bibliographically approved