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Chaotic inflation in supergravity with Heisenberg symmetry

Chaotic inflation in supergravity with Heisenberg symmetry
Chaotic inflation in supergravity with Heisenberg symmetry
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.
0370-2693
428-432
Antusch, Stefan
6a8c0380-78ea-4bcb-afad-4348d84eafba
Bastero-Gil, Mar
16b57761-3a65-4b65-844f-2a63dd69af0d
Dutta, Koushik
91e0b545-4e58-405a-910e-fa74b7889fd2
King, Steve F.
f8c616b7-0336-4046-a943-700af83a1538
Kostka, Philipp M.
b9b61289-32b3-43f6-b789-bf1b6cdb5d32
Antusch, Stefan
6a8c0380-78ea-4bcb-afad-4348d84eafba
Bastero-Gil, Mar
16b57761-3a65-4b65-844f-2a63dd69af0d
Dutta, Koushik
91e0b545-4e58-405a-910e-fa74b7889fd2
King, Steve F.
f8c616b7-0336-4046-a943-700af83a1538
Kostka, Philipp M.
b9b61289-32b3-43f6-b789-bf1b6cdb5d32

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).

Record type: Article

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.

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Published date: 2009

Identifiers

Local EPrints ID: 179073
URI: https://eprints.soton.ac.uk/id/eprint/179073
ISSN: 0370-2693
PURE UUID: d49e7b7b-02aa-4bdd-8095-904fd0e0733c

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Date deposited: 26 Apr 2011 12:36
Last modified: 18 Jul 2017 12:03

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