Non-Gaussianity in two-field inflation
We derive semianalytic formulas for the local bispectrum and trispectrum from general two-field inflation and provide a simple geometric recipe for building observationally allowed models with large non-Gaussianity. We use the δN formalism to express the bispectrum in terms of spectral observables a...
| Main Authors: | , |
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| Other Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society,
2011-12-02T16:36:11Z.
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| Subjects: | |
| Online Access: | Get fulltext |