299 citations · 559 across the 17 of their papers we have counts for
17 papers
Gauge-invariant cosmological perturbations in Type 3 New General Relativity and background-hierarchy bounds
Kyosuke Tomonari, Daniel Blixt, Sebastian Bahamonde
In this paper, we investigate background-hierarchy bounds in Type~3 of New General Relativity (NGR). These bounds arise when the contribution associated with the evolution of the b…
Canonical Vielbeins for General Relativity: D + 1 Decomposition and Constraint Analysis
Joakim Flinckman, Daniel Blixt
We provide a self-contained derivation of the Hamiltonian formulation of General Relativity in vielbein variables in dimensions. Starting from the Einstein--Hilbert action…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
The Hamilton equations in teleparallel gravity and in New General Relativity
Francesco Bajardi, Daniel Blixt, Salvatore Capozziello
We derive the Hamiltonian function for extended teleparallel theories of gravity in their covariant formulation. In particular, we present the Hamiltonian for gravity and Ne…
Degrees of Freedom of New General Relativity I: Type 2, Type 3, Type 5, and Type 8
Kyosuke Tomonari, Daniel Blixt
We investigate the degrees of freedom of new general relativity. This theory is a three-parameter theory and is classified into nine irreducible types according to the rotation sym…
Foliation-generating observers under Lorentz transformations
Daniel Blixt, Alejandro Jiménez Cano, Aneta Wojnar
In this work, we revise the concept of foliation and related aspects that are crucial when formulating the Hamiltonian evolution for various theories beyond General Relativity. In…
Revisiting Stability in New General Relativity
Sebastian Bahamonde, Daniel Blixt, Konstantinos F. Dialektopoulos +1
We study the degrees of freedom in New General Relativity -- flat and metric compatible family of theories -- around the Minkowski background in a gauge invariant manner. First, we…
Primary constraints in general teleparallel quadratic gravity
Francesco Bajardi, Daniel Blixt
The primary constraints for general teleparallel quadratic gravity are presented. They provide a basic classification of teleparallel theories from the perspective of the full nonl…
The Gauss-Bonnet topological scalar in the Geometric Trinity of Gravity
Francesco Bajardi, Daniel Blixt, Salvatore Capozziello
The Gauss-Bonnet topological scalar is presented in metric-teleparallel formalism as well as in the symmetric and general teleparallel formulations. In all of the aforementioned fr…
Geometry and covariance of symmetric teleparallel theories of gravity
Daniel Blixt, Alexey Golovnev, Maria-Jose Guzman +1
We present the geometric foundations and derivations of equations of motion for symmetric teleparallel theories of gravity in the coincident gauge and covariant frameworks. We disc…
Teleparallel bigravity
Daniel Blixt, Manuel Hohmann, Tomi Koivisto +1
We write down the teleparallel equivalent to Hassan-Rosen bigravity, which is written using a torsionful but curvature-free connection. The theories only differ by a boundary term.…
Hamilton's equations in the covariant teleparallel equivalent of general relativity
Laxmipriya Pati, Daniel Blixt, Maria-Jose Guzman
We present Hamilton's equations for the teleparallel equivalent of general relativity (TEGR), which is a reformulation of general relativity based on a curvatureless, metric compat…
Lorentz gauge-invariant variables in torsion-based theories of gravity
Daniel Blixt, Rafael Ferraro, Alexey Golovnev +1
General relativity dynamics can be derived from different actions -- which depart from the Einstein-Hilbert action in boundary terms -- and for different choices of the dynamical v…
Review of the Hamiltonian analysis in teleparallel gravity
Daniel Blixt, María-José Guzmán, Manuel Hohmann +1
We review different approaches to the Hamiltonian analysis of teleparallel theories of gravity. In particular the Hamiltonian analysis for theories led to disputed…
Hamiltonian Analysis In New General Relativity
Daniel Blixt, Manuel Hohmann, Martin Krššák +1
It is known that one can formulate an action in teleparallel gravity which is equivalent to general relativity, up to a boundary term. In this geometry we have vanishing curvature,…
On the gauge fixing in the Hamiltonian analysis of general teleparallel theories
Daniel Blixt, Manuel Hohmann, Christian Pfeifer
The covariant formulation of teleparallel gravity theories must include the spin connection, which has 6 degrees of freedom. One can, however, always choose a gauge such that the s…
Hamiltonian and primary constraints of new general relativity
Daniel Blixt, Manuel Hohmann, Christian Pfeifer
We derive the kinematic Hamiltonian for the so-called "new general relativity" class of teleparallel gravity theories, which is the most general class of theories whose Lagrangian…