Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-04-10
Phys.Rev. D62 (2000) 043512
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, 6 figures, to appear in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.62.043512
We consider the dynamics of power-law inflation with a nonminimally coupled scalar field $\phi$. It is well known that multiple scalar fields with exponential potentials $V(\phi)=V_0 {\rm exp}(-\sqrt{16\pi/p m_{\rm pl}^2} \phi)$ lead to an inflationary solution even if the each scalar field is not capable to sustain inflation. In this paper, we show that inflation can be assisted even in the one-field case by the effect of nonminimal coupling. When $\xi$ is positive, since an effective potential which arises by a conformal transformation becomes flatter compared with the case of $\xi=0$ for $\phi>0$, we have an inflationary solution even when the universe evolves as non-inflationary in the minimally coupled case. For the negative $\xi$, the assisted inflation can take place when $\phi$ evolves in the region of $\phi<0$ \.
No associations
LandOfFree
Power-law inflation with a nonminimally coupled scalar field 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 Power-law inflation with a nonminimally coupled scalar field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power-law inflation with a nonminimally coupled scalar field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-139676