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High Energy Physics - Theory

arXiv:1311.5059 (hep-th)
[Submitted on 20 Nov 2013]

Title:On the Topology of the Inflaton Field in Minimal Supergravity Models

Authors:Sergio Ferrara, Pietro Fre, Alexander S. Sorin
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Abstract:We consider global issues in minimal supergravity models where a single field inflaton potential emerges. In a particular case we reproduce the Starobinsky model and its description dual to a certain formulation of R+R^2 supergravity. For definiteness we confine our analysis to spaces at constant curvature, either vanishing or negative. Five distinct models arise, two flat models with respectively a quadratic and a quartic potential and three based on the SU(1,1)/U(1) space where its distinct isometries, elliptic, hyperbolic and parabolic are gauged. Fayet-Iliopoulos terms are introduced in a geometric way and they turn out to be a crucial ingredient in order to describe the de Sitter inflationary phase of the Starobinsky model.
Comments: 31 pages, LaTex, 7 eps figures, 2 tables
Subjects: High Energy Physics - Theory (hep-th); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph); Mathematical Physics (math-ph)
Report number: CERN-PH-TH/2013-274
Cite as: arXiv:1311.5059 [hep-th]
  (or arXiv:1311.5059v1 [hep-th] for this version)
  https://doi.org/10.48550/arXiv.1311.5059
Related DOI: https://doi.org/10.1007/JHEP04%282014%29095

Submission history

From: Alexander Sorin [view email]
[v1] Wed, 20 Nov 2013 14:12:41 UTC (737 KB)
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