On Power Law Inflation in DBI Models

Details On Power Law Inflation in DBI Models On Power Law Inflation in DBI Models

2007-02-26

arxiv.org/abs/hep-th/0702196v2

JCAP 0705:017,2007

Physics

High Energy Physics

High Energy Physics - Theory

References and comments added

Scientific paper

10.1088/1475-7516/2007/05/017

Inflationary models in string theory which identify the inflaton with an open string modulus lead to effective field theories with non-canonical kinetic terms: Dirac-Born-Infeld scalar field theories. In the case of a $D$-brane moving in an AdS throat with a quadratic scalar field potential DBI kinetic terms allow a novel realization of power law inflation. This note adresses the question of whether this behaviour is special to this particular choice of throat geometry and potential. The answer is that for any throat geometry one can explicitly find a potential which leads to power law inflation. This generalizes the well known fact that an exponential potential gives power law inflation in the case of canonical kinetic terms.

Affiliated with

Also associated with

No associations

Rating

On Power Law Inflation in DBI Models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On Power Law Inflation in DBI Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On Power Law Inflation in DBI Models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-207065