Smeared versus localised sources in flux compactifications

By J. Bl̊abäck, U. Danielsson, Daniel Junghans, T. Riet, T. Wrase, M. Zagermann. 2010

150 citations recorded by the source corpus.

We investigate whether vacuum solutions in flux compactifications that are obtained with smeared sources (orientifolds or D-branes) still survive when the sources are localised. This seems to rely on whether the solutions are BPS or not. First we consider two sets of BPS solutions that both relate to the GKP solution through T-dualities: (p + 1)-dimensional solutions from spacetime-filling Op-planes with a conformally Ricci-flat internal space, and p-dimensional solutions with Op-planes that wrap a 1-cycle inside an everywhere negatively curved twisted torus. The relation between the solution with smeared orientifolds and the localised version is worked out in detail. We then demonstrate that a class of non-BPS AdS4 solutions that exist for IASD fluxes and with smeared D3branes (or analogously for ISD fluxes with anti-D3-branes) does not survive the localisation of the (anti) D3-branes. This casts doubts on the stringy consistency of non-BPS solutions that are obtained in the limit of smeared sources.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/d84290716bfe5735260ec90c9dad047f1770a48c

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Eran Palti
2. T. Riet
3. U. Danielsson
4. Gary Shiu
5. Abdel Nasser Tawfik
6. A. Diab

In Nuclear and High Energy Physics

1. Eran Palti
2. T. Riet
3. U. Danielsson
4. Gary Shiu
5. A. Diab
6. Abdel Nasser Tawfik

Citations in the corpus

• What if string theory has no de Sitter vacua? (2018, background): “It is the authors opinion that this criticism is in part incorrect since many examples with localised solutions, that have a well-defined smeared limit exists, also with negatively curved dimensions [94].”
• The Swampland: Introduction and Review (2019, background): “62 In such cases, there is no general no-go theorem against de Sitter vacua, and there have been many searches for such vacua [464, 468–500].”