2 papers
gr-qc2025
Forces parallel to particle trajectories in relativistic gravity
Valerio Faraoni, Luca Valsan, Uri Gorman
Forces parallel to particle trajectories occur in physically meaningful situations, including relativistic cosmology and Einstein frame scalar-tensor gravity. These situations have…
gr-qc2024
Non-geodesic timelike observers and the ultralocal limit
Reza Saadati, Luca Valsan, Valerio Faraoni
The ultralocal limit along timelike geodesics, in which any geometry reduces to Bianchi I, does not extend to non-geodesic timelike observers. Exceptions are discussed, including p…