Gravitational Waves from Post-Inflationary Magnetism: Direct and Scalar-Induced Contributions
The discussion of 'Gravitational Waves from Post-Inflationary Magnetism' explores how a theoretical model generates gravitational wave (GW) signals. Key findings include a dominant magnetic contribution and a distinct, smaller scalar-induced signal. The research provides testable predictions, such as specific spectral signatures and the ability to explain signals in the nano-Hz range detectable by pulsar timing arrays.