Inflation from Supersymmetry Breaking

Antoniadis, Ignatios (2019). Inflation from Supersymmetry Breaking. Universe, 5(1), p. 30. MDPI 10.3390/universe5010030

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I discuss the possibility that inflation is driven by supersymmetry breaking, with the superpartner of the goldstino (sgoldstino) playing the role of the inflaton. Imposing an R-symmetry to satisfy the slow-roll conditions, avoiding the so-called η-problem, leads to an interesting class of small field inflation models, characterised by an inflationary plateau around the maximum of scalar potential near the origin, where R-symmetry is restored with the inflaton rolling down to a minimum, describing the present phase of the Universe. Inflation can be driven by either an F- or a D-term, while the minimum has a positive tuneable vacuum energy. The models agree with cosmological observations and, in the simplest case, predict a rather small tensor-to-scalar ratio of primordial perturbations. This talk is an extended version of an earlier review (Antoniadis, 2018).

Item Type:

Journal Article (Review Article)

Division/Institute:

08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Antoniadis, Ignatios

Subjects:

500 Science > 530 Physics

ISSN:

2218-1997

Publisher:

MDPI

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

21 May 2019 12:55

Last Modified:

24 Oct 2019 00:06

Publisher DOI:

10.3390/universe5010030

BORIS DOI:

10.7892/boris.127970

URI:

https://boris.unibe.ch/id/eprint/127970

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