2013

An alternative to anti-branes and O-planes?

Danielsson, Ulf, Dibitetto, Giuseppe

Understand

In this paper we consider type IIA compactifications in the isotropic Z2 x Z2 orbifold with a flux-induced perturbative superpotential combined with non-perturbative effects.

Without requiring the presence of O-planes, and simply having D6-branes as local sources, we demonstrate the existence of de Sitter (dS) critical points, where the non-perturbative contributions to the cosmological constant have negligible size.
We note, however, that these solutions generically have tachyons.
By means of a more systematic search, we are able to find two examples of stable dS vacua with no need for anti-branes or O-planes, which, however, exhibit important non-perturbative corrections.

Built on

T. Barreiro, B. de Carlos, J. Casas, and J. Moreno, “Anomalous U(1), gaugino condensation and supergravity,”
1998
Earlier work this paper cites.
S. Kachru, R. Kallosh, A. D. Linde, and S. P. Trivedi, “De Sitter vacua in string theory,”
2003
Earlier work this paper cites.
A. Saltman and E. Silverstein, “The Scaling of the no scale potential and de Sitter model building,”
2004
Earlier work this paper cites.
O. DeWolfe, A. Giryavets, S. Kachru, and W. Taylor, “Type IIA moduli stabilization,”
2005
Earlier work this paper cites.

Similar

A. Achucarro, B. de Carlos, J. Casas, and L. Doplicher, “De Sitter vacua from uplifting D-terms in effective supergravities from realistic strings,”
2006
Cited alongside, same era.
M. P. Hertzberg, S. Kachru, W. Taylor, and M. Tegmark, “Inflationary Constraints on Type IIA String Theory,”
Original
2007
Cited alongside, same era.
A. M. Uranga, “D-brane instantons and the effective field theory of flux compactifications,”
Original
2009
Cited alongside, same era.
I. Bena, M. Grana, and N. Halmagyi, “On the Existence of Meta-stable Vacua in Klebanov-Strassler,”
Original
2010
Cited alongside, same era.
J. Blåbäck, U. Danielsson, and G. Dibitetto, “Accelerated Universes from type IIA Compactifications,”
Original
Cited in the paper.
J. Blåbäck, D. Roest and I. Zavala, “De Sitter Vacua from Non-perturbative Flux Compactifications,” arXiv:1312.5328 [hep-th]
Original
Cited in the paper.

Then

G. Dibitetto, A. Guarino, and D. Roest, “Charting the landscape of N=4 flux compactifications,”
Original
2011
Later among the works it cites.
G. Dibitetto, A. Guarino, and D. Roest, “Exceptional Flux Compactifications,”
Original
2012
Later among the works it cites.
U. Danielsson and G. Dibitetto, “On the distribution of stable de Sitter vacua,”
Original
2013
Closest in time.
J. Blåbäck, U. Danielsson, and G. Dibitetto, “Fully stable dS vacua from generalised fluxes,”
Original
2013
Closest in time.

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