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astro-ph.CO2024
Non-Gaussianity from explicit -breaking interactions
Raymond T. Co, Taegyu Lee, Sai Chaitanya Tadepalli
We investigate primordial non-Gaussianity (NG) arising from the explicit symmetry-breaking interactions during inflation involving a nearly massless axial component of a com…
astro-ph.CO2024
Large Blue Spectral Index From a Conformal Limit of a Rotating Complex Scalar
Daniel J. H. Chung, Sai Chaitanya Tadepalli
One well known method of generating a large blue spectral index for axionic isocurvature perturbations is through a flat direction not having a quartic potential term for the radia…