Fresh inflation with nonminimally coupled inflaton field

Abstract

I study a fresh inflationary model with a scalar field nonminimally coupled to gravity. An example is examined. I find that, as larger is the value of $p$ (the power of the scale factor), smaller (but larger in its absolute value) is the necessary value of the coupling $\xi$ to the inflaton field fluctuations can satisfy a scale invariant power spectrum.

Comments: version accepted in General Relativity and Gravitation