2 papers
hep-ph2001
Inflationary perturbations with multiple scalar fields
B. J. W. van Tent, S. Groot Nibbelink
The calculation of scalar gravitational and matter perturbations during multiple-field inflation valid to first order in slow roll is discussed. These fields may be the coordinates…
hep-ph2000
Density perturbations arising from multiple field slow-roll inflation
S. Groot Nibbelink, B. J. W. van Tent
In this paper we analyze scalar gravitational perturbations on a Robertson-Walker background in the presence of multiple scalar fields that take values on a (geometrically non-triv…