Effective speed approach for scalar field propagation
General Relativity and Quantum Cosmology
2026-02-26 v1
Abstract
We study the propagation of a constant speed gaussian scalar field wave-packet (GWP) in Minkowski space, showing that the energy conditions are violated for superluminal speed. We then apply the effective speed approach to the GWP propagation, deriving the corresponding effective metric, effective Lagrangian and effective stress-energy tensor, showing that the null, weak and strong energy conditions are satisfied.
Cite
@article{arxiv.2602.22023,
title = {Effective speed approach for scalar field propagation},
author = {Kevin Restrepo Tobón and Antonio Enea Romano},
journal= {arXiv preprint arXiv:2602.22023},
year = {2026}
}
Comments
11 pages, 2 figs