Stealth dark energy in scordatura DHOST theory

DOI10.1088/1475-7516/2021/03/081zbMath1485.83046arXiv2009.11606OpenAlexW3137159890MaRDI QIDQ5026049

Shinji Mukohyama, Mohammad Ali Gorji, Hayato Motohashi

Publication date: 7 February 2022

Published in: Journal of Cosmology and Astroparticle Physics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2009.11606

zbMATH Keywords

modified gravitycosmological perturbation theorydark energy theory

Mathematics Subject Classification ID

Relativistic cosmology (83F05) Hydro- and aero-acoustics (76Q05) Macroscopic interaction of the gravitational field with matter (hydrodynamics, etc.) (83C55) Relativistic gravitational theories other than Einstein's, including asymmetric field theories (83D05) Perturbations in context of PDEs (35B20) Exact solutions to problems in general relativity and gravitational theory (83C15) Approximation procedures, weak fields in general relativity and gravitational theory (83C25) Stability and instability of geophysical and astrophysical flows (76E20) Dark matter and dark energy (83C56)

Related Items (13)

Generalized Regge-Wheeler equation from Effective Field Theory of black hole perturbations with a timelike scalar profile ⋮ Disformal map and Petrov classification in modified gravity ⋮ Positivity vs. Lorentz-violation: an explicit example ⋮ Inflation with 0 ≤ c _s ≤ 1 ⋮ Black hole perturbations in DHOST theories: master variables, gradient instability, and strong coupling ⋮ Scale-dependence in DHOST inflation ⋮ Black hole perturbations in higher-order scalar–tensor theories: initial value problem and dynamical stability ⋮ Stability of hairy black holes in shift-symmetric scalar-tensor theories via the effective field theory approach ⋮ Effective field theory of black hole perturbations with timelike scalar profile: formulation ⋮ Approximately stealth black hole in higher-order scalar-tensor theories ⋮ Spherical inhomogeneous solutions of Einstein and scalar-tensor gravity: a map of the land ⋮ Non-Gaussianity in DHOST inflation ⋮ The effective field theory of vector-tensor theories

Uses Software

• xTras

Cites Work

• \textit{xTras}: a field-theory inspired \textit{xAct} package for Mathematica
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• General Relativity solutions with stealth scalar hair in quadratic higher-order scalar-tensor theories
• Ghost from constraints: a generalization of Ostrogradsky theorem
• A unifying description of dark energy
• Mimetic gravity as DHOST theories
• Cosmological evolution in DHOST theories
• Spatially covariant gravity with velocity of the lapse function: the Hamiltonian analysis
• \(k\)-inflation

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