Type IIA AdS4 compactifications on cosets, interpolations and domain walls
| Autor: | Koerber, Paul, Lust, Dieter, Tsimpis, Dimitrios |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | JHEP 0807:017,2008 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1126-6708/2008/07/017 |
| Popis: | 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. Comment: 39 pages, 4 figures, 4 tables; v2: added reference, corrected eqs. (4.12)-(4.14) and (4.25)-(4.27) |
| Databáze: | arXiv |
| Externí odkaz: |
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