Generic f(R) theories and classicality of their scalarons

Radouane Gannouji, M. Sami, I. Thongkool

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


We study quantum stability bound on the mass of scalaron in generic theories of f(R) gravity. We show that in these scenarios, the scalaron mass increases faster with local density of the environment than one-loop quantum correction to it thereby leading to violation of quantum bound on the chameleon mass. The introduction of quadratic curvature corrections in the action are shown to stabilize the model.

Original languageEnglish
Pages (from-to)255-259
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number2
StatePublished - 19 Sep 2012
Externally publishedYes


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