8 citations · 23 across the 8 of their papers we have counts for
8 papers
A unified approach to coupled homogeneous linear wave propagation in generic gravity
Lucas T. Santana, João C. Lobato, Ribamar R. R. Reis +1
Wave propagation is a common occurrence in all of physics. A linear approximation provides a simpler way to describe various fields related to observable phenomena in laboratory ph…
Gravitational wave energy momentum-tensor in reduced Horndeski theories
João C. Lobato, Maurício O. Calvão
We generalize, imposing the field equations only at dominant order, the Isaacson formula for the gravitational wave (GW) energy-momentum tensor (EMT) to the class of Horndeski theo…
Gravitational wave stochastic background in reduced Horndeski theories
João C. Lobato, Isabela S. Matos, Maurício O. Calvão +1
We generalize to reduced Horndeski theories of gravity, where gravitational waves (GWs) travel at the speed of light, the expression of a statistically homogeneous and unpolarized…
New dynamical system approach to Palatini theories and its application to exponential gravity
João C. Lobato, Isabela S. Matos, Maurício O. Calvão +1
The approach of dynamical systems is a useful tool to investigate the cosmological history that follows from modified theories of gravity. It provides qualitative information on th…
Influence of gravitational waves upon light in the Minkowski background: from null geodesics to interferometry
João C. Lobato, Isabela S. Matos, Lucas T. Santana +2
We have recently derived a manifestly covariant evolution law, under the geometrical optics approximation of the vacuum Maxwell's equations, for the electric field along null geode…
Influence of gravitational waves upon light. Part II. Electric field propagation and interference pattern in a gravitational wave detector
João C. Lobato, Isabela S. Matos, Lucas T. Santana +2
In this second article of the series, we apply our recently derived equation for the electric field propagation along light rays [arXiv:2004.03496], valid on the electromagnetic ge…
Influence of gravitational waves upon light. Part I. Null geodesics, radar distance and frequency shift
João C. Lobato, Isabela S. Matos, Lucas T. Santana +2
We explore different facets of the action of linearized gravitational waves in Minkowski spacetime background upon light, under the electromagnetic geometrical optics limit, coveri…
Evolution of the electric field along null rays for arbitrary observers and spacetimes
Lucas T. Santana, João C. Lobato, Isabela S. Matos +2
We derive, in a manifestly covariant and electromagnetic gauge independent way, the evolution law of the electric field , relative to an arbitrary set of inst…