Angular Inflation from Supergravity

Germán, G. and Mazumdar, Anupam and Pérez-Lorenzana, A. (2002) Angular Inflation from Supergravity. Modern Physics Letters A, 17 (25): 1627. ISSN 0217-7323

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We study supergravity inflationary models where inflation is produced along the angular direction. For this we express the scalar component of a chiral superfield in terms of the radial and the angular components. We then express the supergravity potential in a form particularly simple for calculations involving polynomial expressions for the superpotential and Kahler potential. We show for a simple Polonyi model the angular direction may give rise to a stage of inflation when the radial field is fixed to its minimum. We obtain analytical expressions for all the relevant inflationary quantities and discuss the possibility of supersymmetry breaking in the radial direction while inflating by the angular component.

Item Type:
Journal Article
Journal or Publication Title:
Modern Physics Letters A
Additional Information:
7 pages, one figure. Final version. Title changed, two figures dropped
Uncontrolled Keywords:
?? astronomy and astrophysicsnuclear and high energy physics ??
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Deposited On:
03 May 2013 09:21
Last Modified:
15 Jul 2024 13:45