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Article overview
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N=1 Sigma Models in AdS_4 | | Allan Adams
; Hans Jockers
; Vijay Kumar
; Joshua M. Lapan
; | | Date: |
15 Apr 2011 | | Abstract: | We study sigma models in AdS_4 with global N=1 supersymmetry and find that
they differ significantly from their flat-space cousins -- the target space is
constrained to be a Kahler manifold with an exact Kahler form, the
superpotential transforms under Kahler transformations, the space of
supersymmetric vacua is generically a set of isolated points even when the
superpotential vanishes, and the R-symmetry is classically broken by the
cosmological constant. Remarkably, the exactness of the Kahler class is also
required for the sigma model to arise as a decoupling limit of N=1
supergravity, and ensures the vanishing of gravitational anomalies. As simple
applications of these results, we argue that fields with AdS_4 scale masses are
ubiquitous in, for example, type IIB N=1 AdS_4 vacua stabilized near large
volume; we also show that the Affleck-Dine-Seiberg runaway of N_f < N_c SQCD is
regulated by considering the theory in AdS_4. | | Source: | arXiv, 1104.3155 | | Services: | Forum | Review | PDF | Favorites | |
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