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de Sitter minima from M-theory and string theory

2020; American Physical Society; Volume: 101; Issue: 4 Linguagem: Inglês

10.1103/physrevd.101.046018

2470-0037

Niccolò Cribiori, Рената Каллош, Andrei Linde, Christoph Roupec,

Particle physics theoretical and experimental studies

We study M-theory compactification on ${\mathbb{T}}^{7}/{\mathbb{Z}}_{2}^{3}$ in the presence of a seven-flux, metric fluxes, and KK monopoles. The effective four-dimensional supergravity has seven chiral multiplets whose couplings are specified by the ${G}_{2}$-structure of the internal manifold. We supplement the corresponding superpotential by a KKLT type nonperturbative exponential contribution for all, or for some of the seven moduli, and find a discrete set of supersymmetric Minkowski minima. We also study type IIA and type IIB string theory compactified on ${\mathbb{T}}^{6}/{\mathbb{Z}}_{2}^{2}$. In type IIA, we use a six-flux, geometric fluxes, and nonperturbative exponents. In type IIB theory, we use F and H fluxes, and nongeometric Q and P fluxes, corresponding to consistently gauged supergravity with certain embedding tensor components, without nonperturbative exponents. Also in these situations, we produce discrete Minkowski minima. Finally, to construct dS vacua starting from these Minkowski progenitors, we follow the procedure of mass production of dS vacua.