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Cosmological perturbations in modified teleparallel gravity models: Boundary term extension
Sebastian Bahamonde, Viktor Gakis, Stella Kiorpelidi +3
Teleparallel gravity offers a new avenue in which to construct gravitational models beyond general relativity. While teleparallel gravity can be framed in a way to be dynamically e…
Minkowski space in gravity
Jose Beltran Jimenez, Alexey Golovnev, Tomi Koivisto +1
The full set of solutions of gravity with the Minkowski metric is considered in this note. At the 4-th order in perturbations around the trivial tetrad solution, a new mode…
Testing gravity with redshift space distortions
Bruno J. Barros, Tiago Barreiro, Tomi Koivisto +1
A Bayesian statistical analysis using redshift space distortions data is performed to test a model of Symmetric Teleparallel Gravity where gravity is non-metrical. The cosmological…
The coupling of matter and spacetime geometry
Jose Beltran Jimenez, Lavinia Heisenberg, Tomi Koivisto
The geometrical formulation of gravity is not unique and can be set up in a variety of spacetimes. Even though the gravitational sector enjoys this freedom of different geometrical…