120 citations · 359 across the 6 of their papers we have counts for
6 papers
The Kummer tensor density in electrodynamics and in gravity
Peter Baekler, Alberto Favaro, Yakov Itin +1
Guided by results in the premetric electrodynamics of local and linear media, we introduce on 4-dimensional spacetime the new abstract notion of a Kummer tensor density of rank fou…
Beyond Einstein-Cartan gravity: Quadratic torsion and curvature invariants with even and odd parity including all boundary terms
Peter Baekler, Friedrich W. Hehl
Recently, gravitational gauge theories with torsion have been discussed by an increasing number of authors from a classical as well as from a quantum field theoretical point of vie…
Poincare gauge theory of gravity: Friedman cosmology with even and odd parity modes. Analytic part
Peter Baekler, Friedrich W. Hehl, James M. Nester
We propose a cosmological model in the framework of the Poincaré gauge theory of gravity (PG). The gravitational Lagrangian is quadratic in curvature and torsion. In our specific m…
Linear connections with propagating spin-3 field in gravity
Peter Baekler, Nicolas Boulanger, Friedrich W. Hehl
We show that Fronsdal's Lagrangian for a free massless spin-3 gauge field in Minkowski spacetime is contained in a general Yang--Mills-like Lagrangian of metric-affine gravity (MAG…
Rotating Black Holes in Metric-Affine Gravity
Peter Baekler, Friedrich W. Hehl
Within the framework of metric-affine gravity (MAG, metric and an independent linear connection constitute spacetime), we find, for a specific gravitational Lagrangian and by using…
Einstein-aether theory, violation of Lorentz invariance, and metric-affine gravity
Christian Heinicke, Peter Baekler, Friedrich W. Hehl
We show that the Einstein-aether theory of Jacobson and Mattingly (J&M) can be understood in the framework of the metric-affine (gauge theory of) gravity (MAG). We achieve this by…