Dynamics of D3-D7 Brane Inflation in Throats

Abstract

Dynamics of D3-branes in models of warped D3-D7 inflationary set up is studied where perturbative ${\alpha }^{\prime }$ correction to the Kähler potential and the nonperturbative corrections to the superpotential are included. It is shown that a dS minimum can be obtained without introducing anti-branes. Some specific configurations of D7-branes embedding were studied. After stabilizing the angular directions, it is shown that the resulting D3-D7 potential of the radial position of the D3-brane is too steep to allow slow-roll inflation. Depending on D7-branes embedding and the stabilized angular directions, the mobile D3-brane can move either towards the tip of the throat or towards the D7-branes.

minor changes, to appear in JHEP

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Cited by in corpus (13)

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• Brane Annihilations during Inflation
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• Observable Signatures of Inflaton Decays
• Brane/flux annihilation transitions and nonperturbative moduli stabilization
• Planck Stars from a Scale-dependent Gravity theory
• Non-Gaussianities in multi-field DBI inflation with a waterfall phase transition
• Spinflation with Angular Potentials
• The Cosmological Constant and the Electroweak Scale
• DBI Lifshitz Inflation
• Multi-brid DBI Inflation