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Consistency Condition for Slow-roll and Rapid-turn Inflation
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Consistency Condition for Slow-roll and Rapid-turn Inflation
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We summarize our work on a consistency condition for inflation in two-field cosmological models, in the regime of rapid turn and third-order slow roll. To ensure a sustained inflationary period of this type, one needs to satisfy a certain relation between the scalar potential and the scalar field-space metric. We explain the derivation of this condition. Furthermore, we argue that, generically, the rapid-turn phase tends to be short-lived.
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Cited by 1 Pith paper
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On consistency conditions for strong SRRT inflation in two-field cosmological models
The strong SRRT consistency condition for two-field inflation is recast as a geometric PDE, reduced to a contact Hamilton-Jacobi equation for the metric conformal factor, and solved asymptotically near critical points.
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