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astro-ph.CO2026
Non-Minimally Coupled Warm Inflation in the Defining Frame
Adrián Casado-Turrión, Paulo B. Ferraz, Mindaugas Karčiauskas +1
Warm inflation in scalar-tensor theories of gravity is investigated in the `defining' frame, where the theory and its parameter values are specified. Translating the result…
astro-ph.CO2026
Axion Inflation with a Massive Abelian Gauge Field
Ricardo Z. Ferreira, Alessio Notari, José Jaime Terente Díaz
An axial coupling between an inflaton and an Abelian gauge field can trigger the tachyonic amplification of one gauge-field helicity. For a massless vector, modes with physical mom…