Reheating via a generalized non-minimal coupling of curvature to matter

Abstract

In this work one shows that a generalized non-minimal coupling between geometry and matter is compatible with Starobinsky inflation and leads to a successful process of preheating, a reheating scenario based on the production of massive particles via parametric resonance. The model naturally extends the usual preheating mechanism, which resorts to an {\it ad-hoc} scalar curvature-dependent mass term for a scalar field $\chi$, and also encompasses a previously studied preheating channel based upon a non-standard kinetic term.

12 pages

References in corpus (7)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• The Standard Model Higgs boson as the inflaton
• Cosmological Constraints from the SDSS Luminous Red Galaxies
• Extra force in $f(R)$ modified theories of gravity
• Nonminimal coupling of perfect fluids to curvature
• Do f(R) theories matter?
• On the non-minimal gravitational coupling to matter

Cited by in corpus (19)

• f(R,T) gravity
• Generalized curvature-matter couplings in modified gravity
• On the consistency of universally non-minimally coupled $f(R,T,R_{\mu \nu }{T}^{\mu \nu })$ theories
• Perturbation of the metric around a spherical body from a nonminimal coupling between matter and curvature
• On the Chameleon Brans-Dicke Cosmology
• Dark matter production via a non-minimal coupling to gravity
• Dynamical analysis of nonminimal coupled theories
• The Layzer-Irvine equation in theories with non-minimal coupling between matter and curvature
• Hubble tension in a nonminimally coupled curvature-matter gravity model
• Gravitational collapse in non-minimally coupled gravity: finite density singularities and the breaking of the no-hair theorem
• Screening Mechanism and Late-time Cosmology: Role of a Chameleon-Brans-Dicke Scalar Field
• The 1/c expansion of nonminimally coupled curvature-matter gravity model and constraints from planetary precession
• Is cosmological data suggesting a nonminimal coupling between matter and gravity?
• Nuclear Limits on Non-Minimally Coupled Gravity
• Gravitational wave polarizations in nonminimally coupled gravity
• Gravitational waves from a curvature-induced phase transition of a Higgs-portal dark matter sector
• Analysing Ultra High Energy Cosmic Rays' Anisotropy in $\mathbf{f}(\mathbf{R},\mathbf{T})$ Gravity Theory
• A Nonminimal Coupling Model and its Short-Range Solar System Impact
• A perturbative approach for the study of compatibility between nonminimally coupled gravity and Solar System experiments