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Mutated Hybrid Inflation
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Mutated Hybrid Inflation
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A new model of inflation is described. An unusual form for the inflationary potential is obtained because the inflaton corresponds to a non-trivial path in the configuration space of the two real scalar fields of the model. The model predicts a spectral index $n = 1 - 3/2N \simeq 0.97$ for the density perturbations and negligible gravitational waves.
Forward citations
Cited by 3 Pith papers
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Unification of polynomial and exponential cosmological attractors
A one-parameter family of α-attractor potentials interpolates between exponential and polynomial attractor predictions, letting n_s scan the range preferred by CMB+DESI.
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Inflation, Open Universes, and Dark Energy
A slightly open universe with Ω_k ≈ 3×10^{-3} pulls n_s down to ~0.969, reconciling plateau inflation models with combined CMB and DESI data.
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Unification of polynomial and exponential cosmological attractors
Embedding polynomial attractor potentials within α-attractor geometry yields a unified model class that interpolates between exponential and polynomial inflationary predictions via a single parameter μ.
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