Cosmology in the presence of diffeomorphism-violating, nondynamical background fields
arXiv:2205.06329 · doi:10.1103/PhysRevD.106.023524
Abstract
We consider diffeomorphism violation, which is parameterized by nondynamical background fields of the gravitational Standard-Model Extension (SME), and study its effects on the time evolution of the Universe. Our goal is to identify background field configurations that imply stages of accelerated expansion without exotic forms of matter and radiation present. Although our approach gives rise to a set of restrictive conditions, configurations are encountered that exhibit this property or show other interesting behaviors. The findings of our article, which is among the first to apply the SME to a cosmological setting, provide an initial understanding of how to technically incorporate background fields into the cosmological evolution equations and what their phenomenological impact may be.
arXiv comment18 pages, 2 figures
References in corpus (76)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
- Dynamics of dark energy
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
- The Confrontation between General Relativity and Experiment
- Cosmological Imprint of an Energy Component with General Equation of State
- A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
- Quantum Gravity at a Lifshitz Point
- The Complete Light-curve Sample of Spectroscopically Confirmed Type Ia Supernovae from Pan-STARRS1 and Cosmological Constraints from The Combined Pantheon Sample
- Cosmology and the Fate of Dilatation Symmetry
- The Cosmological Constant
- Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
- The Dynamics of General Relativity
- Phantom Energy and Cosmic Doomsday
- A Dynamical Solution to the Problem of a Small Cosmological Constant and Late-time Cosmic Acceleration
- k-Inflation
- Essentials of k-essence
- Resummation of Massive Gravity
- Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
- The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory
- Data Tables for Lorentz and CPT Violation
- Gravity, Lorentz Violation, and the Standard Model
- Dark Energy Survey Year 3 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
- Noncommutative Field Theory and Lorentz Violation
- Nonstandard optics from quantum spacetime
- CPT, Strings, and Meson Factories
- Signals for Lorentz Violation in Post-Newtonian Gravity
- Spontaneous Lorentz Violation, Nambu-Goldstone Modes, and Gravity
- A systematic approach to generalisations of General Relativity and their cosmological implications
- An exact Schwarzschild-like solution in a bumblebee gravity model
- Modified theories of Gravity: Why, How and What?
- Spontaneous Lorentz and Diffeomorphism Violation, Massive Modes, and Gravity
- Black holes with a cosmological constant in bumblebee gravity
- Energy conditions and their cosmological implications
- Constraints and Stability in Vector Theories with Spontaneous Lorentz Violation
- Backgrounds in gravitational effective field theory
- Waves on Noncommutative Spacetime and Gamma-Ray Bursts
- Spacetime foam, CPT anomaly, and photon propagation
- A CPT anomaly
- Explicit versus Spontaneous Diffeomorphism Breaking in Gravity
- On Loop Quantum Gravity Phenomenology and the Issue of Lorentz Invariance
- Signals for Lorentz violation in gravitational waves
- Natural Quintessence?
- Bounds on length scales of classical spacetime foam models
- Gluonic vacuum, q-theory, and the cosmological constant
- Generalized bumblebee models and Lorentz-violating electrodynamics
- Lorentz and Diffeomorphism Violations in Linearized Gravity
- Lorentz violation in the gravity sector: The t puzzle
- Vector models of gravitational Lorentz symmetry breaking
- Quantization and stability of bumblebee electrodynamics
- Dynamical Lorentz symmetry breaking in a tensor bumblebee model
- Radiative corrections in bumblebee electrodynamics
- Bayesian Evidences for Dark Energy models in light of current obsevational data
- Gravity with explicit spacetime symmetry breaking and the Standard-Model Extension
- Spontaneous Lorentz symmetry breaking and one-loop effective action in the metric-affine bumblebee gravity
- 3+1 Formulation of the Standard-Model Extension Gravity Sector
- Z-string global gauge anomaly and Lorentz non-invariance
- Introduction to modified gravity
- Towards a solution of the cosmological constant problem
- Hamiltonian formulation of an effective modified gravity with nondynamical background fields
- Searches for beyond-Riemann gravity
- Noether identities in gravity theories with nondynamical backgrounds and explicit spacetime symmetry breaking
- CPT anomaly: a rigorous result in four dimensions
- Theory and Phenomenology of Spacetime Defects
- Explicit Lorentz violation in a static and spherically-symmetric spacetime
- OGRe: An Object-Oriented General Relativity Package for Mathematica
- Quantum gravitational states of ultracold neutrons as a tool for probing of beyond-Riemann gravity
- Anomalous Lorentz and CPT violation from a local Chern-Simons-like term in the effective gauge-field action
- Inflation as an amplifier: the case of Lorentz violation
- Exact modifications on a vacuum spacetime due to a gradient bumblebee field at its vacuum expectation value
- Dynamical ambiguities in models with spontaneous Lorentz violation
- Dynamic cancellation of a cosmological constant and approach to the Minkowski vacuum
- Relating Noncommutative SO(2,3) Gravity to the Lorentz-Violating Standard-Model Extension
- 100 years of mathematical cosmology: Models, theories, and problems