Chaotic inflation in supergravity with Heisenberg symmetry
Antusch, Stefan, Bastero-Gil, Mar, Dutta, Koushik, King, Steve F. and Kostka, Philipp M. (2009) Chaotic inflation in supergravity with Heisenberg symmetry. Physics Letters B, 679, (5), 428-432. (doi:10.1016/j.physletb.2009.08.022)
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Description/Abstract
We propose the introduction of a Heisenberg symmetry of the Kähler potential to solve the problems with chaotic inflation in supergravity, as a viable alternative to the use of shift symmetry. The slope of the inflaton potential emerges from a small Heisenberg symmetry breaking term in the superpotential. The modulus field of the Heisenberg symmetry is stabilized and made heavy with the help of the large vacuum energy density during inflation. The observable predictions are indistinguishable from those of typical chaotic inflation models, however the form of the inflationary superpotential considered here may be interpreted in terms of sneutrino inflation arising from certain classes of string theory.
| Item Type: | Article |
|---|---|
| ISSN: | 0370-2693 (print) |
| Subjects: | Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Physics and Astronomy > Southampton High Energy Physics |
| ePrint ID: | 179073 |
| URI: | http://eprints.soton.ac.uk/id/eprint/179073 |
| Deposited On: | 26 Apr 2011 13:36 |
| Last Modified: | 01 Jun 2011 16:40 |
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