Critical solutions of nonminimally coupled scalar field theory and first-order thermodynamics of gravity
Valerio Faraoni, Pierre-Antoine Graham, Alexandre Leblanc
Abstract
Analytical solutions of nonminimally coupled scalar field cosmology corresponding to critical scalar field values constitute a potential challenge to the recent first-order thermodynamics of scalar-tensor gravity (a formalism picturing general relativity as the zero-temperature equilibrium state for modified gravity). The critical solutions are unstable with respect to homogeneous perturbations, hence unphysical.
Topics & Concepts
PhysicsScalar fieldGeneral relativityCosmologyGravitationf(R) gravityClassical mechanicsScalar (mathematics)Theoretical physicsMathematical physicsQuantum mechanicsQuantum gravityGeometryQuantumMathematicsCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsQuantum Electrodynamics and Casimir Effect