More on gravitational waves from double monodromy inflation
Abishev M. Abylayeva A. Addazi A. Aldabergenov Y. Berkimbayev D.
10 December 2022Elsevier B.V.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
2022#835
We further analyze phenomenological implications of double axion monodromy inflation proposed in Ref. (DAmico et al. [13]), 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.
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Department of Theoretical and Nuclear Physics, Al-Farabi Kazakh National University, 71 Al-Farabi Ave., Almaty, 050040, Kazakhstan
Institute of Nuclear Physics, 1 Ibraginov Str., Almaty, 050032, Kazakhstan
Center for Theoretical Physics, College of Physics, Science and Technology, Sichuan University, Chengdu, 610065, China
Laboratori Nazionali di Frascati INFN, Frascati (Rome), Italy
Department of Physics, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok, 10330, Thailand
Department of Theoretical and Nuclear Physics
Institute of Nuclear Physics
Center for Theoretical Physics
Laboratori Nazionali di Frascati INFN
Department of Physics
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