Effective description of generalized disformal theories
gr-qc, astro-ph.CO, hep-th
Submitted: 2023-04-17
Updated: 2026-09-22
Comments: 16 pages + 1-page erratum; v3: erratum appended
Journal ref: JCAP 07 (2023) 009; Erratum: JCAP 09 (2026) E02
DOI: 10.1088/1475-7516/2023/07/009 10.1088/1475-7516/2026/09/E02
License: http://creativecommons.org/licenses/by/4.0/
The gist: Generalized disformal transformations enable us to construct the generalized disformal Horndeski theories, which form the most general class of ghost-free scalar-tensor theories to this date.
Terminology
Abstract
Generalized disformal transformations enable us to construct the generalized disformal Horndeski theories, which form the most general class of ghost-free scalar-tensor theories to this date. We extend the effective field theory (EFT) of cosmological perturbations to incorporate these generalized disformal Horndeski theories. The main difference from the conventional EFT is that our extended EFT involves operators with higher spatial derivatives of the lapse function. Our EFT also accommodates the generalized disformal transformation of U-DHOST theories.
Sources
- Cosmological Tests of Modified Gravity
- Cosmological Tests of Gravity
- Cosmological gravity probes: connecting recent theoretical developments to forthcoming observations
- From k-essence to generalised Galileons
- Generalized G-inflation: Inflation with the most general second-order field equations
- f(R) Theories Of Gravity
- f(R) theories
- Cosmology and Astrophysical Constraints of Gauss-Bonnet Dark Energy
- Black hole hair in generalized scalar-tensor gravity
- Black hole hair in generalized scalar-tensor gravity: An explicit example
- Black-Hole Solutions with Scalar Hair in Einstein-Scalar-Gauss-Bonnet Theories
- Spontaneous scalarization of black holes and compact stars from a Gauss-Bonnet coupling
- k-Inflation
- The Theorem of Ostrogradsky
- Quantum Ostrogradsky theorem
- Third order equations of motion and the Ostrogradsky instability
- Degenerate higher derivative theories beyond Horndeski: evading the Ostrogradski instability
- Healthy degenerate theories with higher derivatives
- Exorcising the Ostrogradsky ghost in coupled systems
- Ghost-free theory with third-order time derivatives
Related papers
- Listening to the Horizon: Probing Near-Horizon Reflectivity with GW250114
- A Pairwise Surrogate for Gravitational-Wave Spectra from Highly Relativistic Vacuum Bubble Collisions
- Tests of General Relativity with Einstein Telescope
- A weakly modelled view of the joint compact-binary mass plane: population structure and spectral-siren cosmology
- Unitary quantum matter-bounce in a universe with a positive cosmological constant
- Nonreciprocal black holes with primary hair in beyond Horndeski gravity: Exact solutions and stability