Generic f(R) theories and classicality of their scalarons

Abstract

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.

7 pages, no figures, typos corrected, to match with the PLB published version

References in corpus (11)

• Models of f(R) Cosmic Acceleration that Evade Solar-System Tests
• Disappearing cosmological constant in f(R) gravity
• Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale
• Observational signatures of f(R) dark energy models that satisfy cosmological and local gravity constraints
• Future of the universe in modified gravitational theories: Approaching to the finite-time future singularity
• The future evolution and finite-time singularities in $F(R)$-gravity unifying the inflation and cosmic acceleration
• A Singularity Problem with f(R) Dark Energy
• Dark Matter from R^2-gravity
• Classifying and avoiding singularities in the alternative gravity dark energy models
• The behavior of $f(R)$ gravity in the solar system, galaxies and clusters
• Delicate f(R) gravity models with disappearing cosmological constant and observational constraints on the model parameters

Cited by in corpus (17)

• Neutron stars in Starobinsky model
• Finite-time Cosmological Singularities and the Possible Fate of the Universe
• Late time acceleration due to generic modification of gravity and Hubble tension
• K-mouflage effects on clusters of galaxies
• Spontaneous symmetry breaking in cosmos: The hybrid symmetron as a dark energy switching device
• Modified theory of gravity and the history of cosmic evolution
• Can Dark Matter be an artifact of extended theories of gravity?
• What is needed of a scalar field if it is to unify inflation and late time acceleration ?
• SUPER-Screening
• Withholding Potentials, Absence of Ghosts and Relationship between Minimal Dilatonic Gravity and f(R) Theories
• On the equivalence between different canonical forms of F(R) theory of gravity
• Scalaron production in contracting astrophysical objects
• A new test of gravity -- I: Introduction to the method
• A new constant behind the rotational velocity of galaxies
• Cosmic acceleration sourced by modification of gravity without extra degrees of freedom
• A new unified model of dark matter and dark energy in 5-dimensional $f(R,\varphi )$ gravity
• Marked statistics across the cosmic web: Environmental dependent clustering in modified gravity simulations