4 papers
Teleparallel gravity from the principal bundle viewpoint
Sebastian Brezina, Eugenia Boffo, Martin Krššák
We examine whether the Teleparallel Equivalent of General Relativity (TEGR) can be formulated as a gauge theory in the language of connections on principal bundles. We argue in fav…
Lowering the strong coupling mode of modified teleparallel gravity theories
Yu-Min Hu, Bi-Chu Li, Yang Yu +3
We investigate the strong coupling problem in modified teleparallel gravity theories using the effective field theory (EFT) approach, demonstrating that it is possible to shift the…
Self-Excited Gravitational Instantons
Martin Krššák
We present a novel approach to constructing gravitational instantons based on the observation that the gravitational action of general relativity in its teleparallel formulation ca…
Einstein gravity from the Einstein action: Counterterms and covariance
Martin Krššák
The field equations of general relativity can be derived from the Einstein action, which is quadratic in connection coefficients, rather than the standard action involving the Gibb…