Topological Inflation in Supergravity

Details Topological Inflation in Supergravity Topological Inflation in Supergravity

2000-05-09

arxiv.org/abs/hep-ph/0005073v3

Phys.Rev. D62 (2000) 123507

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 7 figures. To appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.62.123507

We investigate a topological inflation model in supergravity. By means of numerical simulations, it is confirmed that topological inflation can take place in supergravity. We also show that the condition for successful inflation depends not only on the vacuum-expectation value (VEV) of inflaton field but also on the form of its K\"ahler potential. In fact, it is found that the required VEV of the inflaton $\phi$ can be as small as $<\phi > \simeq 1 \times M_G$, where $M_{G}$ is the gravitational scale.

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