Scattering amplitudes in affine gravity
arXiv:2012.05144 · doi:10.1103/PhysRevD.103.105019
Abstract
Affine gravity is a connection-based formulation of gravity that does not involve a metric. After a review of basic properties of affine gravity, we compute the tree-level scattering amplitude of scalar particles interacting gravitationally via the connection in a curved spacetime. We find that, while classically equivalent to general relativity, affine gravity differs from metric quantum gravity.
References in corpus (41)
- Quantum Gravity at a Lifshitz Point
- Nonperturbative Evolution Equation for Quantum Gravity
- Quantum Einstein Gravity
- Nonperturbative Quantum Gravity
- Quantum Gravity from Causal Dynamical Triangulations: A Review
- Agravity
- xTras: a field-theory inspired xAct package for Mathematica
- xPerm: fast index canonicalization for tensor computer algebra
- The causal set approach to quantum gravity
- Unitarity, stability and loops of unstable ghosts
- Form Factors in Asymptotic Safety: conceptual ideas and computational toolbox
- The Invar Tensor Package
- New Action Principle for General Relativity
- Finite Quantum Gravity Amplitudes -- no strings attached
- Functional renormalization with fermions and tetrads
- Hořava gravity is asymptotically free (in 2+1 dimensions)
- Lorentz invariance violations in the interplay of quantum gravity with matter
- Lorentz symmetry is relevant
- Gauge Assisted Quadratic Gravity: A Framework for UV Complete Quantum Gravity
- Fermions in gravity with local spin-base invariance
- Affine Inflation
- Graviton-Mediated Scattering Amplitudes from the Quantum Effective Action
- Universality of affine formulation in General Relativity theory
- A Gauge Theoretic Approach to Gravity
- Global surpluses of spin-base invariant fermions
- Induced Affine Inflation
- Spin-base invariance of Fermions in arbitrary dimensions
- Are there really conformal frames? Uniqueness of affine inflation
- Pure connection formalism for gravity: Feynman rules and the graviton-graviton scattering
- On the Weyl - Eddington - Einstein affine gravity in the context of modern cosmology
- The Maxwell Lagrangian in purely affine gravity
- Entropy Production in Affine Inflation
- Pure Connection Formalism for Gravity: Linearized Theory
- Towards a unitary, renormalizable and ultraviolet-complete quantum theory of gravity
- Gravitation, electromagnetism and the cosmological constant in purely affine gravity
- Inducing Gravity From Connections and Scalar Fields
- Affine gravitational scenario for dark matter decay
- Fakeons, unitarity, massive gravitons and the cosmological constant
- Pure connection gravity at one loop: Instanton background
- A polynomial model of purely affine gravity
- Pure-connection gravity and anisotropic singularities