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arXiv · 0804.0614

Type IIA AdS4 compactifications on cosets, interpolations and domain walls

Paul Koerber·Dieter Lust·Dimitrios Tsimpis
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Abstract

We present a classification of a large class of type IIA N=1 supersymmetric compactifications to AdS4, based on left-invariant SU(3)-structures on coset spaces. In the absence of sources the parameter spaces of all cosets leading to a solution contain regions corresponding to nearly-Kaehler structure. I.e. all these cosets can be viewed as deformations of nearly-Kaehler manifolds. Allowing for (smeared) six-brane/orientifold sources we obtain more possibilities. In the second part of the paper, we use a simple ansatz, which can be applied to all six-dimensional coset manifolds considered here, to construct explicit thick domain wall solutions separating two AdS4 vacua of different radii. We also consider smooth interpolations between AdS4 x M6 and R^{1,2} x M7, where M6 is a nearly-Kaehler manifold and M7 is the G2-holonomy cone over M6.

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Paul Koerber, Dieter Lust, Dimitrios Tsimpis. 2008-07-02. Type IIA AdS4 compactifications on cosets, interpolations and domain walls. https://doi.org/10.1088/1126-6708%2F2008%2F07%2F017

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