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arXiv · hep-ph/0112093

Supersymmetric topological inflation model

M. Kawasaki·Masahide Yamaguchi
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Abstract

We propose a topological inflation model in supergravity. In this model, the vacuum expectation value (VEV) of a scalar field takes a value much larger than the gravitational scale $M_{G} \simeq 2.4 \times 10^{18}$ GeV, which is large enough to cause topological inflation. On the other hand, expansions of the Kähler potential and the superpotential beyond the gravitational scale are validated by the introduction of a Nambu-Goldstone-like shift symmetry. Thus, topological inflation inevitably takes place in our model.

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M. Kawasaki, Masahide Yamaguchi. 2002-03-29. Supersymmetric topological inflation model. https://doi.org/10.1103/physrevd.65.103518

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