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• W2121036152 abstract "Two-field slow-roll inflation is the most conservative modification of a single-field model. The main motivations to study it are its entropic mode and non-Gaussianity. Several years ago, for a two-field model with additive separable potentials, Vernizzi and Wands invented an analytic method to estimate its non-Gaussianities. Later on, Choi et al. applied this method to the model with multiplicative separable potentials. In this note, we design a larger class of models whose non-Gaussianity can be estimated by the same method. Under some simplistic assumptions, roughly these models are unlikely able to generate a large non-Gaussianity. We look over some specific models of this class by scanning the full parameter space, but still no large non-Gaussianity appears in the slow-roll region. These models and scanning techniques would be useful for a future model hunt if observational evidence shows up for two-field inflation." @default.
• W2121036152 created "2016-06-24" @default.
• W2121036152 creator A5064378514 @default.
• W2121036152 date "2010-12-14" @default.
• W2121036152 modified "2023-09-25" @default.
• W2121036152 title "Note on non-Gaussianities in two-field inflation" @default.
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• W2121036152 doi "https://doi.org/10.1103/physrevd.82.123515" @default.
• W2121036152 hasPublicationYear "2010" @default.
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