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hep-th2026
On the Validity of the Effective Theory of (Multi-)Field Inflation
Andrea Ambrosi de Magistris, Alberto Salvio
Motivated by trans-Planckian issues in inflation, we determine the Hilbert space and amplitudes of quantum perturbations in the general low-energy effective theory of (multi-)field…
hep-ph2026★ 1 cited
Supercooled Phase Transitions with Radiative Symmetry Breaking
Alberto Salvio
First-order phase transitions produce gravitational waves and primordial black holes. They always occur in field theories where symmetries are radiatively broken and masses are cor…
hep-th2026
Thermal Gauge Theory for a Rotating Plasma
Alberto Salvio
This paper provides a systematic and complete study of thermal gauge theory for generic equilibrium density matrices, which feature arbitrary values not only of temperature and che…