Nonlocal theories of gravity: the flat space propagator
arXiv:1302.0532
Abstract
It was recently found that there are classes of nonlocal gravity theories that are free of ghosts and singularities in their Newtonian limit [PRL, 108 (2012), 031101]. In these proceedings, a detailed and pedagogical derivation of a main result, the flat space propagator for an arbitrary covariant metric theory of gravitation, is presented. The result is applied to analyse f(R) models, Gauss-Bonnet theory, Weyl-squared gravity and the potentially asymptotically free nonlocal theories.
12 pages. Prepared for "Proceedings of the Barcelona Postgrad Encounters on Fundamental Physics". V2: typos fixed, added a reference
References in corpus (5)
Cited by in corpus (40)
- Notes on non-singular models of black holes
- Super-renormalizable & Finite Gravitational Theories
- Hybrid metric-Palatini gravity
- Classical properties of non-local, ghost- and singularity-free gravity
- Ghost-free infinite derivative quantum field theory
- Counting ghosts in the "ghost-free" non-local gravity
- Head-on collision of ultrarelativistic particles in ghost-free theories of gravity
- Non-local gravity and comparison with observational datasets
- Stable analytic bounce in non-local Einstein-Gauss-Bonnet cosmology
- On Newtonian singularities in higher derivative gravity models
- On an integrable geometrical foundation of gravity
- Ghost and tachyon free Poincaré gauge theories: a systematic approach
- Wald's gravitational entropy for ghost-free, infinite derivative theories of Gravity
- Higher-order theories of gravity: diagnosis, extraction and reformulation via non-metric extra degrees of freedom
- Radiation from an emitter in the ghost free scalar theory
- -waves as exact solutions to ghost-free infinite derivative gravity
- Nonlocal generalization of Galilean theories and gravity
- Generalised Boundary Terms for Higher Derivative Theories of Gravity
- Defocusing of Null Rays in Infinite Derivative Gravity
- Probing the vacuum fluctuations in scalar ghost-free theories
- Exact solutions of non-local gravity in a class of almost universal spacetimes
- UV completion of the Starobinsky model, tensor-to-scalar ratio, and constraints on non-locality
- Stable, non-singular bouncing universe with only a scalar mode
- Hamiltonian for scalar field model of infinite derivative gravity
- Quantum solitonic wave-packet of a meso-scopic system in singularity free gravity
- Hamiltonian Formalism for Nonlocal Gravity Models
- New massless and massive infinite derivative gravity in three dimensions
- Hamiltonian Analysis for Infinite Derivative Field Theories and Gravity
- Basic issues of conservative approaches to quantum theory of gravity
- Conditions for defocusing around more general metrics in Infinite Derivative Gravity
- Towards UV Finiteness of Infinite Derivative Theories of Gravity and Field Theories
- Spherical collapse of small masses in the ghost-free gravity
- Cosmology of non-local f(R) gravity
- The origin of regular Newtonian potential in infinite derivative gravity
- Exact gyratons in higher and infinite derivative gravity
- Spherically symmetric static solutions, newtonian potential and degrees of freedom of a Nonlocal action
- Slavnov Identities for Infinite Derivative Theory of Gravity
- Naturalness as a reasonable scientific principle in fundamental physics
- Local and Nonlocal Thermal Field Theory
- Unitarity in Infinite Derivative Theories