Cosmological constant, near brane behavior and singularities

Download statistics - Document (COUNTER):

Gautason, Fridrik Freyr; Junghans, Daniel; Zagermann, Marco: Cosmological constant, near brane behavior and singularities. In: Journal of High Energy Physics 2013 (2013), Nr. 9, 123. DOI: https://doi.org/10.1007/JHEP09(2013)123

Repository version

To cite the version in the repository, please use this identifier: https://doi.org/10.15488/1613

Selected time period:

year: 
month: 

Sum total of downloads: 23




Thumbnail
Abstract: 
We show that the classical cosmological constant in type II flux compactifications can be written as a sum of terms from the action of localized sources plus a specific contribution from non-trivial background fluxes. Exploiting two global scaling symmetries of the classical supergravity action, we find that the flux contribution can in many interesting cases be set to zero such that the cosmological constant is fully determined by the boundary conditions of the fields in the near-source region. This generalizes and makes more explicit previous arguments in the literature. We then discuss the problem of putting D3-branes at the tip of the Klebanov-Strassler throat glued to a compact space in type IIB string theory so as to engineer a de Sitter solution. Our result for the cosmological constant and a simple global argument indicate that inserting a fully localized and backreacting (D3) over bar -brane into such a background yields a singular energy density for the NSNS and RR 3-form field strengths at the (D3) over bar -brane. This argument does not rely on partial smearing of the (D3) over bar -brane or a linearization of field equations, but on a few general assumptions that we also discuss carefully.
License of this version: CC BY 4.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2013
Appears in Collections:Fakultät für Mathematik und Physik

distribution of downloads over the selected time period:

downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 23 100.00%

Further download figures and rankings:


Hinweis

Zur Erhebung der Downloadstatistiken kommen entsprechend dem „COUNTER Code of Practice for e-Resources“ international anerkannte Regeln und Normen zur Anwendung. COUNTER ist eine internationale Non-Profit-Organisation, in der Bibliotheksverbände, Datenbankanbieter und Verlage gemeinsam an Standards zur Erhebung, Speicherung und Verarbeitung von Nutzungsdaten elektronischer Ressourcen arbeiten, welche so Objektivität und Vergleichbarkeit gewährleisten sollen. Es werden hierbei ausschließlich Zugriffe auf die entsprechenden Volltexte ausgewertet, keine Aufrufe der Website an sich.

Search the repository


Browse