We investigate the possible existence of (meta-)stable de Sitter vacua within = 1 compactificationswithgeneralisedfluxes. Withtheaidofanalgorithminspiredby 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.
Blaback, J., Danielsson, U.h., Dibitetto, G. (2013). Fully stable dS vacua from generalised fluxes. JOURNAL OF HIGH ENERGY PHYSICS, 2013 [10.1007/JHEP08(2013)054].
Fully stable dS vacua from generalised fluxes
J. Blaback
;G. Dibitetto
2013-01-01
Abstract
We investigate the possible existence of (meta-)stable de Sitter vacua within = 1 compactificationswithgeneralisedfluxes. Withtheaidofanalgorithminspiredby 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
