Massive vector multiplet inflation with Dirac-Born-Infeld type action

Abstract

We investigate the inflation model with a massive vector multiplet in a case that the action of the vector multiplet is extended to the Dirac-Born-Infeld (DBI) type one. We show the massive DBI action in 4 dimensional $\mathcal{N}=1$ supergravity, and find that the higher order corrections associated with the DBI-extension make the scalar potential flat with a simple choice of the matter couplings. We also discuss the DBI-extension of the new minimal Starobinsky model, and find that it is dual to a special class of the massive DBI action.

10 pages, 3 figures, v2: a reference added, v3: references and comments added

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• General inflaton potentials in supergravity
• Single-field $\alpha$-attractors
• Cosmological Attractors from $\alpha$-Scale Supergravity
• Inflation in Supergravity with a Single Chiral Superfield
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Cited by in corpus (10)

• Beyond Starobinsky inflation
• SUSY breaking after inflation in supergravity with inflaton in a massive vector multiplet
• Removing instability of Polonyi-Starobinsky supergravity by adding FI term
• Higgs mechanism and cosmological constant in $N=1$ supergravity with inflaton in a vector multiplet
• Massive vector multiplet with Dirac-Born-Infeld and new Fayet-Iliopoulos terms in supergravity
• Matter coupled Dirac-Born-Infeld action in 4-dimensional N=1 conformal supergravity
• Minimal Starobinsky supergravity coupled to dilaton-axion superfield
• DBI action of real linear superfield in 4D $\mathcal{N}=1$ conformal supergravity
• The DBI Action, Higher-derivative Supergravity, and Flattening Inflaton Potentials
• More on DBI action in 4D $\mathcal{N}=1$ supergravity