On brane inflation with volume stabilization

By J. P. Hsu, R. Kallosh, Sergey F. Prokushkin. 2003

148 citations recorded by the source corpus.

The distance between BPS branes in string theory corresponds to a flat direction in the effective potential. Small deviations from supersymmetry may lead to a small uplifting of this flat direction and to brane inflation. However, this scenario can work only if the BPS properties of the branes and the corresponding flatness of the inflaton potential are preserved in the stable volume compactification. We present an `inflaton trench' mechanism that keeps the inflaton potential flat due to shift symmetry, which is related to near BPS symmetry in our model.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/bc3d68e15d01d2d957925a290ff1e86978a8f8f3

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Citations in the corpus

Dynamics of warped compactifications and the shape of the warped landscape (2005, result): “Our results are thus relevant to investigations of the existence of de Sitter vacua in string theory, and of their phenomenology, cosmology, and statistics.”
Inflation and String Theory (2014, background): “It was shown in [610, 612] that the tree-level Kähler potential is indeed shift-symmetric, so that before accounting for additional terms in the effec-”
Towards inflation in string theory (2003, methodology): “Both of these ideas were explored in a recent paper [61] based on the model of D3/D7 inflation in string theory [62].”
D-terms and F-terms from D7-brane fluxes (2005, background): “However, the precise computation of this D-term in the (6)Actually there is a slight mismatch involving the Wilson line moduli fields aI [53], which is cured at the open string one loop level [54].”
On Inflation in String Theory (2003, background): “The model has an approximate shift symmetry [58, 59, 60], which results in the required flatness of the inflaton potential.”
Inflation in realistic D-brane models (2004, background): “[29, 31, 32, 33] for subsequent proposals within a similar framework.”
Closer towards inflation in string theory (2003, background): “Ref [ 8 ] considers the shift symmetry for the D7-branes.”
Large-volume flux compactifications: Moduli spectrum and D3/D7 soft supersymmetry breaking (2005, background): “In particular, recent models of inflation in the KKLT scenario either coming from brane/antibrane systems [54, 67, 68, 69 , 70, 71, 72, 73] or the racetrack inflation [74, 75], could be reconsidered in view of our results.”