35 citations · 139 across the 15 of their papers we have counts for
5 papers · 1 filter
Classical radiation fields for scalar, electromagnetic, and gravitational waves with spacetime-symmetry breaking
Quentin G. Bailey, Alexander S. Gard, Nils A. Nilsson +2
An effective field theory framework is used to investigate some Lorentz-violating effects on the generation of electromagnetic and gravitational waves, complementing previous work…
Spacetime-symmetry breaking effects in gravitational-wave generation at the first post-Newtonian order
Nils A. Nilsson, Christophe Le-Poncin Lafitte
Current searches for signals of departures from the fundamental symmetries of General Relativity using gravitational waves are largely dominated by propagation effects like dispers…
Dynamical dark energy from spacetime-symmetry breaking -- late-time behaviour and phantom crossing
Nils A. Nilsson
We investigate the late-time cosmological dynamics in a simple case of explicit spacetime-symmetry breaking. By expanding in a small symmetry-breaking coefficient we are able to wr…
On the energy flow of in Hořava-Lifshitz cosmology
Ewa Czuchry, Nils A. Nilsson
Hořava-Lifshitz gravity has been proposed as a ghost-free quantum gravity model candidate with an anisotropic UV-scaling between space and time. We present here a cosmological back…
A New Test of Dynamical Dark Energy Models and Cosmic Tensions in Hořava Gravity
Eleonora Di Valentino, Nils A. Nilsson, Mu-In Park
Horava gravity has been proposed as a renormalizable, higher-derivative, Lorentz-violating quantum gravity model without ghost problems. A Horava gravity based dark energy (HDE) mo…