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...ysics. In the case N = KM for some integral K, the IRseld theory at the end of the cascade is a pure N = 1 supersymmetric SU(M) Yang-Mills theory. The KS model can be embedded into a compact geometry =-=[5]-=- and used to realize warping as a means of generating large hierarchies as in the Randall-Sundrum scenario [6] along the lines advocated in [7] (for other discussions along these lines, see e.g. [8])....

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...ory – i.e. the system with a mass gap. In a string theoretic setup, these effects can be achieved by gluing an AdS-throat like solution onto a compactification geometry which acts as a UV-brane as in =-=[26, 27]-=-. In this section we shall discuss the effective actions which result from these generalizations, focusing on the relative strength of corrections to the potential energy and DBI kinetic energy terms ...

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...ng on CY3, and the (formally very similar) attractor description of black hole entropies, we work mostly with the IIb flux compactifications on Calabi-Yau developed by Giddings, Kachru and Polchinski =-=[20]-=-. Then Ω is the holomorphic three-form on the CY, and G is a sum of the NS and RR three-form gauge field strengths G = F RR − τH NS , with F,H ∈ H 3 (M, Z), and τ = C (0) + ie −φ is the dilaton-axion....

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...r we will establish new attractor equations for the general flux vacua of type IIB string theory compactified on CY orientifolds. We choose O3/O7 orientifolds to be specific, as in the GPK-KKLT vacua =-=[14]-=-, [15]. The essential ingredient in deriving new flux vacua attractor equations which we will use in this paper is a Hodge-decomposition of the space of allowed 4-form fluxes proposed in [16]. 2 The c...

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...that lift the vacuum degeneracy of supersymmetric string models. First they introduce background fluxes for NS and RR forms to fix all of the complex-structure moduli of a Calabi-Yau compactification =-=[2, 3, 4, 5, 6]-=-. Second, they focus on models having only one Kähler modulus, and fix this remaining modulus using nonperturbative effects combined with the remnant superpotential produced by the fluxes, typically l...

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...egions of the compactified space. A prototypical example of such a strongly warped throat is the warped deformed conifold [50,51]. The effective field theory of compact models containing such throats =-=[48,49]-=- has been explored in detail in [52]. In the slow-roll paradigm, inflation can happen when a brane is approaching anti-branes in a throat if the potential is flat enough. However, this is non-generic ...

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...s induce the interesting effects and modify the metric via the Einstein equations in a way that can be interpreted as a scalar potential for the moduli fields in the effective four-dimensional theory =-=[43, 44, 45, 46, 47, 48, 49, 50]-=-. The most general potential known for such a flux compactification can have both stable supersymmetric as well as meta-stable non-supersymmetric minima. This is an important step towards realistic st...

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...mpactifying type II string theories on specific orientifolds of Calabi-Yau manifolds which preserve one of the two supersymmetries present in standard Calabi-Yau compactifications of type II theories =-=[6, 7, 8, 9, 10]-=-. The D-branes can then be arranged such that they preserve the same supersymmetry. These string vacua realize an N = 1 supersymmetry which is spontaneously broken once background fluxes are turned on...