Unification of polynomial and exponential cosmological attractors

Abstract

We introduce a family of simple $\alpha$-attractor models that can interpolate between exponential and polynomial cosmological attractors. By varying the interpolation parameter $\mu$ in these models, one can scan a wide range of values of the spectral index $n_s$ matching any combination of CMB and DESI data.

3 pages, 3 figures, a typo corrected, and a figure added