Three Form Inflation
classification
🌌 astro-ph
hep-th
keywords
formthreeconsistencycouplinginflationperturbationsrelationself
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It is noted that inflation driven by a three form with arbitrary self coupling satisfies a consistency relation $n_S-1=2n_T$, between spectral indices of scalar and tensor cosmological perturbations. The standard consistency relation for the ratio of the amplitudes of perturbations is only valid for quadratic self coupling of the three form.
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