This work tabulates measured and derived values of coefficients for Lorentz and CPT
violation in the standard-model extension. Summary tables are extracted listing maximal …

An effective-field theory framework, the Standard Model Extension, is used to investigate the
existence of Lorentz and CPT-violating effects during gravitational wave propagation. We …

In this work, we review the effective field theory framework to search for Lorentz and CPT
symmetry breaking during the propagation of gravitational waves. The article is written so as …

In this book, we review various aspects of the Lorentz symmetry breaking, both classical and
quantum ones, with the special interest to perturbative generation of Lorentz-breaking terms …

The Einstein-Æther theory has drawn a lot of attentions in recent years. As a representative
case of gravitational theories that break the Lorentz symmetry, it plays an important role in …

Current searches for signals of departures from the fundamental symmetries of general
relativity using gravitational waves are largely dominated by propagation effects like …

Since 1969, Lunar Laser Ranging (LLR) data have been collected by various observatories
and analysed by different analysis groups. In the recent years, observations with bigger …

Lorentz symmetry (LS), one of the most fundamental physical symmetries, has been
extensively studied in the context of quantum gravity and unification theories. Many of these …

The violation of Lorentz invariance (LI) in gravitational theories, which allows superluminal
propagations, dramatically alters the causal structure of the spacetime and modifies the …

Lorentz violation (LV) is posited as a possible relic effect of quantum gravity at low energy
scales. The standard model extension provides an effective field-theoretic framework for …