ﻻ يوجد ملخص باللغة العربية
We construct infinite new classes of $AdS_4times S^1times S^5$ solutions of type IIB string theory which have non-trivial $SL(2,mathbb{Z})$ monodromy along the $S^1$ direction. The solutions are supersymmetric and holographically dual, generically, to $mathcal{N}=1$ SCFTs in $d=3$. The solutions are first constructed as $AdS_4times mathbb{R}$ solutions in $D=5$ $SO(6)$ gauged supergravity and then uplifted to $D=10$. Unlike the known $AdS_4times mathbb{R}$ S-fold solutions, there is no continuous symmetry associated with the $mathbb{R}$ direction. The solutions all arise as limiting cases of Janus solutions of $d=4$, $mathcal{N}=4$ SYM theory which are supported both by a different value of the coupling constant on either side of the interface, as well as by fermion and boson mass deformations. As special cases, the construction recovers three known S-fold constructions, preserving $mathcal{N}=1,2$ and 4 supersymmetry, as well as a recently constructed $mathcal{N}=1$ $AdS_4times S^1times S^5$ solution (not S-folded). We also present some novel one-sided Janus solutions that are non-singular.
We construct a continuous one parameter family of $AdS_4times S^1times S^5$ S-fold solutions of type IIB string theory which have nontrivial $SL(2,mathbb{Z})$ monodromy in the $S^1$ direction. The solutions span a subset of a conformal manifold that
We obtain constraints from black hole superradiance in an ensemble of compactifications of type IIB string theory. The constraints require knowing only the axion masses and self-interactions, and are insensitive to the cosmological model. We study mo
We propose a mechanism for the natural inflation with and without modulation in the framework of type IIB string theory on toroidal orientifold or orbifold. We explicitly construct the stabilization potential of complex structure, dilaton and Kahler
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We study the probability distribution P(Lambda) of the cosmological constant Lambda in a specific set of KKLT type models of supersymmetric IIB vacua. We show that, as we sweep through the quantized flux values in this flux compactification, P(Lambda