Toric Fano varieties and Chern-Simons quivers

Details Toric Fano varieties and Chern-Simons quivers Toric Fano varieties and Chern-Simons quivers

2012-01-11

arxiv.org/abs/1201.2431v2

Physics

High Energy Physics

High Energy Physics - Theory

92 pages and many figures. v2: section 7.3 on quivers with equal ranks expanded

Scientific paper

In favourable cases the low energy dynamics of a stack of M2-branes at a toric Calabi-Yau fourfold singularity can be described by an N=2 supersymmetric Chern-Simons quiver theory, but there still does not exists an "inverse algorithm" going from the toric data of the CY_4 to the CS quiver. We make progress in that direction by deriving CS quiver theories for M2-branes probing cones over a large class of geometries Ypq(B_4), which are S^3/Z_p bundles over toric Fano varieties B_4. We rely on the type IIA understanding of CS quivers, giving a firm string theory footing to our CS theories. In particular we give a derivation of some previously conjectured CS quivers in the case B_4= CP^1*CP^1, as field theories dual to M-theory backgrounds with nontrivial torsion G_4 fluxes.

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