Inflationary Universe in Higher Derivative Induced Gravity

Details Inflationary Universe in Higher Derivative Induced Gravity Inflationary Universe in Higher Derivative Induced Gravity

2000-03-23

arxiv.org/abs/hep-th/0003206v4

Phys.Rev. D62 (2000) 087301

Physics

High Energy Physics

High Energy Physics - Theory

6 pages, two typos corrected

Scientific paper

10.1103/PhysRevD.62.087301

In an induced-gravity model, the stability condition of an inflationary slow-rollover solution is shown to be $\phi_0 \partial_{\phi_0}V(\phi_0)=4V(\phi_0)$. The presence of higher derivative terms will, however, act against the stability of this expanding solution unless further constraints on the field parameters are imposed. We find that these models will acquire a non-vanishing cosmological constant at the end of inflation. Some models are analyzed for their implication to the early universe.

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