Fully stable dS vacua from generalised fluxes Johan Blåbäck, Ulf Danielsson, Giuseppe Dibitetto (Submitted on 29 Jan 2013 (v1), last revised 16 Jul 2013 (this version, v2)) We investigate the possible existence of (meta-)stable de Sitter vacua within N=1 compactifications with generalised fluxes. With the aid of an algorithm inspired by the method of differential evolution, we were able to find three novel examples of completely tachyon-free de Sitter extrema in a non-isotropic type IIB model with non-geometric fluxes. We also analyse the surroundings of the aforementioned points in parameter space and chart the corresponding stability regions. These happen to occur at small values of the cosmological constant compared to the AdS scale. Comments: 6 pages + appendix, 9 embedded picture files. v2: Minor changes to the text. Version accepted for JHEP publication Subjects: High Energy Physics - Theory (hep-th) Cite as: arXiv:1301.7073 [hep-th] (or arXiv:1301.7073v2 [hep-th] for this version)
Posted on: Wed, 31 Jul 2013 12:28:05 +0000
Trending Topics
Recently Viewed Topics
© 2015