A Delicate Universe

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dc.creatorBaumann, Daniel
dc.creatorDymarsky, Anatoly
dc.creatorKlebanov, Igor R.
dc.creatorMcAllister, Liam
dc.creatorSteinhardt, Paul J.
dc.date2007-05-25
dc.date.accessioned2026-07-07T11:16:23Z
dc.date.available2026-07-07T11:16:23Z
dc.descriptionWe investigate whether explicit models of warped D-brane inflation are possible in string compactifications. To this end, we study the potential for D3-brane motion in a warped conifold that includes holomorphically-embedded D7-branes involved in moduli stabilization. The presence of the D7-branes significantly modifies the inflaton potential. We construct an example based on a very simple and symmetric embedding due to Kuperstein, z_1 = constant, in which it is possible to fine-tune the potential so that slow roll inflation can occur. The resulting model is rather delicate: inflation occurs in the vicinity of an inflection point, and the cosmological predictions are extremely sensitive to the precise shape of the potential.
dc.description4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0705.3837
dc.identifierhttp://arxiv.org/abs/0705.3837
dc.identifierPhys.Rev.Lett.99:141601,2007
dc.identifierdoi:10.1103/PhysRevLett.99.141601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192654
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.titleA Delicate Universe
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