@Article{Amarilo_etal2024,
author="Amarilo, K. M.
and Ferreira Filho, M. B.
and Araujo Filho, A. A.
and Reis, J. A. A. S.",
title="Gravitational waves effects in a Lorentz-violating scenario",
journal="Physics Letters B",
year="2024",
publisher="Elsevier",
volume="855",
pages="138785--7pp",
optkeywords="Gravitational waves; Lorentz symmetry breaking; Polarization states; Quadrupole term",
abstract="This paper focuses on how the production and polarization of gravitational waves are affected by spontaneous Lorentz symmetry breaking, which is driven by a self-interacting vector field. Specifically, we examine the impact of a smooth quadratic potential and a non-minimal coupling, discussing the constraints and causality features of the linearized Einstein equation. To analyze the polarization states of a plane wave, we consider a fixed vacuum expectation value (VEV) of the vector field. Remarkably, we verify that a space-like background vector field modifies the polarization plane and introduces a longitudinal degree of freedom. In order to investigate the Lorentz violation effect on the quadrupole formula, we use the modified Green function. Finally, we show that the space-like component of the background field leads to a third-order time derivative of the quadrupole moment, and the bounds for the Lorentz-breaking coefficients are estimated as well.",
optnote="WOS:001257664300001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=6168), last updated on Tue, 09 Jul 2024 06:46:33 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2024.138785",
opturl="https://arxiv.org/abs/2307.10937",
opturl="https://doi.org/10.1016/j.physletb.2024.138785",
language="English"
}