Constrained superfields on metastable anti-D3-branes

Aalsma, Lars; van der Schaar, Jan Pieter; Vercnocke, Bert

doi:10.1007/JHEP05(2017)089

Constrained superfields on metastable anti-D3-branes

Lars Aalsma
(
- Amsterdam U.
)
,
Jan Pieter van der Schaar
(
- Amsterdam U.
)
,
Bert Vercnocke
(
- Leuven U.
)

Mar 16, 2017

23 pages

Published in:

JHEP 05 (2017) 089

Published: May 17, 2017

e-Print:

1703.05771 [hep-th]

DOI:

10.1007/JHEP05(2017)089

View in:

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Abstract: (arXiv)

We study the effect of brane polarization on the supersymmetry transformations of probe anti-D3-branes at the tip of a Klebanov-Strassler throat geometry. As is well known, the probe branes can polarize into NS5-branes and decay to a supersymmetric state by brane-flux annihilation. The effective potential has a metastable minimum as long as the number of anti-D3-branes is small compared to the number of flux quanta. We study the reduced four-dimensional effective NS5-brane theory and show that in the metastable minimum supersymmetry is non-linearly realized to leading order, as expected for spontaneously broken supersymmetry. However, a strict decoupling limit of the higher order corrections in terms of a standard nilpotent superfield does not seem to exist. We comment on the possible implications of these results for more general low-energy effective descriptions of inflation or de Sitter vacua.

Note:

22 pages, 1 figure. v2: fixed typos, matches published version

D-branes
Superstring Vacua
Supersymmetry Breaking
supersymmetry: minimal
supersymmetry: spontaneous symmetry breaking
supersymmetry: transformation
correction: higher-order
vacuum state: de Sitter
superfield: constraint
dimension: 4

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