2 papers
gr-qc2024
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…
gr-qc2024
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…