Gravitational Wave Detection Based on Gravitomagnetic Effects

TL;DR

This paper proposes a novel method for detecting gravitational waves by monitoring gravitomagnetic effects on test particles' angular momentum, potentially enhancing detection sensitivity with future gyroscope-based detectors.

Contribution

It introduces a new detection approach based on gravitomagnetic effects and resonance amplification using magnetic moments, expanding gravitational wave detection techniques.

Findings

Resonant precession can amplify gravitational wave signals.

Magnetic moments in test particles enable detection of gravitomagnetic effects.

Potential for future gyroscope-based gravitational wave detectors.

Abstract

In this paper, we explore the feasibility of detecting gravitomagnetic effects generated by gravitational waves, by monitoring the relative orientation of the angular momentum vectors of test particles. We analyze the response of the relative angular momentum direction to all six polarization modes of gravitational waves and estimate the magnitude of its variation during gravitational wave events. Our findings indicate that when test particles possess magnetic moments, applying an external magnetic field of appropriate strength can induce resonant precession of the angular momentum direction under the influence of gravitational waves. This resonance may significantly amplify the gravitational wave signal, potentially enabling its detection with future gyroscope-based detectors. Such detectors would complement existing gravitational wave observatories that rely on gravitoelectric effects.