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Quadra-Spectrum and Quint-Spectrum from Inflation and Curvaton Models · Around

2010

Quadra-Spectrum and Quint-Spectrum from Inflation and Curvaton Models

Lin, Chunshan, Wang, Yi

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We calculate the quadra-spectrum and quint-spectrum, corresponding to five and six point correlation functions of the curvature perturbation.

For single field inflation with standard kinetic term, the quadra-spectrum and quint-spectrum are small, which are suppressed by slow roll parameters.
The calculation can be generalized to multiple fields.
When there is no entropy perturbation, the quadra-spectrum and quint-spectrum are suppressed as well.

Built on

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