paper

More on gravitational waves from double monodromy inflation

arXiv:2210.07155 · doi:10.1016/j.physletb.2022.137574

Abstract

We further analyze phenomenological implications of double axion monodromy inflation proposed in Ref. Phys. Rev. D 104, L081302 (2021), in gravitational wave physics. We show that in addition to chiral gravitational waves (GW) originating from gauge field instability, the model also predicts significant amount of non-chiral, scalar-induced gravitational waves, both peaking at around the same frequencies. We find that although chiral GW density has much larger peak, non-chiral GWs can dominate away from the peak as they decay at a slower rate. This provides an interesting GW signature to be probed by future space-based interferometers such as LISA and DECIGO.

arXiv commentRevtex 4-2; 6 pages, 3 figures. V3: revised version (accepted to PLB)

References in corpus (17)