Backgrounds in gravitational effective field theory

VA Kostelecký, Z Li - Physical Review D, 2021 - APS
Effective field theories describing gravity coupled to matter are investigated, allowing for
operators of arbitrary mass dimension. Terms violating local Lorentz and diffeomorphism …

Searches for beyond-Riemann gravity

VA Kostelecký, Z Li - Physical Review D, 2021 - APS
Many effective field theories describing gravity cannot arise from an underlying theory based
on Riemann geometry or its extensions to include torsion and nonmetricity but may instead …

Mathematical foundations for field theories on Finsler spacetimes

M Hohmann, C Pfeifer, N Voicu - Journal of Mathematical Physics, 2022 - pubs.aip.org
This paper introduces a general mathematical framework for action-based field theories on
Finsler spacetimes. As most often fields on Finsler spacetime (eg, the Finsler fundamental …

Cosmological Finsler Spacetimes

M Hohmann, C Pfeifer, N Voicu - Universe, 2020 - mdpi.com
Applying the cosmological principle to Finsler spacetimes, we identify the Lie Algebra of
symmetry generators of spatially homogeneous and isotropic Finsler geometries, thus …

Probing a Finslerian Schwarzschild black hole with the orbital precession of Sagittarius

X Li, X Zhang, HN Lin - Physical Review D, 2022 - APS
Orbits of Finslerian Schwarzschild black hole have been investigated in this paper. The
Finslerian Schwarzschild black hole is a warp product spacetime where its two dimensional …

Geodesic motion in Bogoslovsky-Finsler spacetimes

M Elbistan, PM Zhang, N Dimakis, GW Gibbons… - Physical Review D, 2020 - APS
We study the free motion of a massive particle moving in the background of a Finslerian
deformation of a plane gravitational wave in Einstein's general relativity. The deformation is …

Schwarzschild-like solutions in Finsler–Randers gravity

A Triantafyllopoulos, S Basilakos, E Kapsabelis… - The European Physical …, 2020 - Springer
In this work, we extend for the first time the spherically symmetric Schwarzschild and
Schwarzschild–De Sitter solutions with a Finsler–Randers-type perturbation which is …

Randers -waves

S Heefer, C Pfeifer, A Fuster - Physical Review D, 2021 - APS
In this work, we study Randers spacetimes of Berwald type and analyze Pfeifer and
Wohlfarth's vacuum field equation of Finsler gravity for this class. We show that, in this case …

Quantum configuration and phase spaces: Finsler and Hamilton geometries

S Albuquerque, VB Bezerra, IP Lobo, G Macedo… - Physics, 2023 - mdpi.com
In this paper, we reviewtwo approaches that can describe, in a geometrical way, the
kinematics of particles that are affected by Planck-scale departures, named Finsler and …

The Einstein-Hilbert-Palatini formalism in pseudo-Finsler geometry

MA Javaloyes, M Sánchez, FF Villaseñor - arxiv preprint arxiv:2108.03197, 2021 - arxiv.org
A systematic development of the so-called Palatini formalism is carried out for pseudo-
Finsler metrics $ L $ of any signature. Substituting in the classical Einstein-Hilbert-Palatini …