What is the Velocity of Gravitational Waves?

TL;DR

This paper introduces a new gravity theory that aligns with General Relativity in matter interactions but predicts a different velocity for gravitational waves, which could be tested with upcoming detections.

Contribution

It proposes a novel gravity field theory that differs from General Relativity in the predicted velocity of gravitational waves.

Findings

Different gravitational wave velocity prediction from GR

Compatibility with GR in matter interactions

Potential for experimental validation with future gravitational wave detections

Abstract

We present a new field theory of gravity. It incorporates a great part of General Relativity (GR) and can be interpreted in the standard geometrical way like GR as far as the interaction of matter to gravity is concerned. However, it differs from GR when treating gravity to gravity interaction. The most crucial distinction concerns the velocity of propagation of gravitational waves. Since there is a large expectation that the detection of gravitational waves will occur in the near future the question of which theory describes Nature better will probably be settled soon.