2023/09/13 by Raphael Kopp, Kopp, Raphael
Engineering · Physics and Astronomy · #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Geophysics and Sensor Technology #High Energy Physics - Theory (hep-th) #Mechanical and Optical Resonators #Pulsars and Gravitational Waves Research
paper · pdf · doi:10.48550/arxiv.2309.07318
openalex publication_date 2023/09/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The Worldline Quantum Field Theory (WQFT) has proven to be an efficient tool for calculating observables in gravitational wave physics. In contrast to other QFT-based techniques in the realm of gravitational wave physics, it makes the classical limit very apparent. However, a natural question remains: How does it relate to ordinary quantum field theories that we know from particle physics? This question will be addressed by extending existing approaches to a description including spin. Furthermore, it will be explicitly shown that the WQFT can retain quantum contributions by summing up infinite towers of worldline loops.