Gravitomagnetic effects

TL;DR

This paper reviews the theoretical foundations and experimental efforts related to gravitomagnetism, including key effects like Lense-Thirring and clock effects, and discusses the feasibility of detecting these phenomena.

Contribution

It provides a comprehensive overview of gravitomagnetic theory and surveys various experimental and observational proposals to verify its effects.

Findings

Description of gravitoelectromagnetic form of Einstein equations

Review of Lense-Thirring and clock effects

Assessment of experimental feasibility

Abstract

This paper contains a review of the theory and practice of gravitomagnetism, with particular attention to the different and numerous proposals which have been put forward to experimentally or observationally verify its effects. The basics of the gravitoelectromagnetic form of the Einstein equations is expounded. Then the Lense-Thirring and clock effects are described, reviewing the essentials of the theory. Space based and Earth based experiments are listed. Other effects, such as the coupling of gravitomagnetism with spin, are described and orders of magnitude are considered to give an idea of the feasibility of actual experiments.