Abstract. We calculate the primordial spectrum of scalar perturbations of the 3-form inflation and we find that the curvature perturbations decay at late times. As as result, although a non-minimally coupled massive 3-form field may drive inflation at early times, it should be assisted by other fields in order to reproduce the observed temperature fluctuations of the CMB sky.

Key words: cosmological perturbation theory; inflation; modified gravity

E-print number: 0908.0001
Cited: by
Refers: to

Received 10 August 2009, accepted for publication 3 October 2009
Published 5 November 2009