Fully stable dS vacua from generalised fluxes

Fully stable dS vacua from generalised fluxes
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来自广义通量的完全稳定的 dS 真空

DOI:
10.1007/jhep08(2013)054
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发表时间:
2013
影响因子:
5.4
通讯作者:
G. Dibitetto
G. Dibitetto
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
J. Bl̊abäck;U. Danielsson;G. Dibitetto

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我们研究了具有广义通量的紧致化{N}=1中(亚)稳定De Sitter真空的可能存在性。在微分进化算法的帮助下,我们在一个具有非几何通量的非各向同性IIB模型中找到了三个完全无快子的De Sitter极值的新例子。我们还分析了上述点在参数空间中的环境,并绘制了相应的稳定区域。与ADS尺度相比,这些恰好发生在宇宙学常数的较小值处。
A bstractWe investigate the possible existence of (meta-)stable de Sitter vacua within $ \mathcal{N} $ = 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.