Probing Gravitational Quantum Field Theory through Polarization Fingerprints of Gravitational Waves
This research develops a model-independent method to analyze gravitational waves from LISA and Taiji detectors to distinguish between General Relativity (GR) and Gravitational Quantum Field Theory (GQFT). By incorporating orbital dynamics, the study shows that GQFT predicts three observable modes: two standard tensor modes and one breathing scalar mode. This provides practical tools for testing fundamental theories of gravity.