2 papers
astro-ph.CO2025
Effective Field Theory of Chiral Gravitational Waves
Katsuki Aoki, Tomohiro Fujita, Ryodai Kawaguchi +1
When a (non-)Abelian gauge field acquires an isotropic background configuration during inflation, strong gravitational waves (GWs) with parity-violating polarization, known as chir…
astro-ph.CO2023
Low-Scale Inflationary Magnetogenesis without Baryon Isocurvature Problem
Kazuki Yanagihara, Fumio Uchida, Tomohiro Fujita +1
Primordial magnetogenesis is an intriguing possibility to explain the origin of intergalactic magnetic fields (IGMFs). However, the baryon isocurvature problem has recently been po…