PP wave limit and enhanced supersymmetry in gauge theories

Itzhaki, Nissan ; Klebanov, Igor R. ; Mukhi, Sunil (2002) PP wave limit and enhanced supersymmetry in gauge theories Journal of High Energy Physics, 2002 (3). 048 -048. ISSN 1126-6708

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Official URL: http://iopscience.iop.org/1126-6708/2002/03/048

Related URL: http://dx.doi.org/10.1088/1126-6708/2002/03/048

Abstract

We observe that the pp wave limit of AdS5 × M5 compactifications of type-IIB string theory is universal, and maximally supersymmetric, as long as M5 is smooth and preserves some supersymmetry. We investigate a specific case, M5 = T 1,1. The dual N = 1 SCFT, describing D3-branes at a conifold singularity, has operators that we identify with the oscillators of the light-cone string in the universal pp wave background. The correspondence is remarkable in that it relies on the exact spectrum of anomalous dimensions in this CFT, along with the existence of certain exceptional series of operators whose dimensions are protected only in the limit of large `t Hooft coupling. We also briefly examine the singular case M5 = S5/Z2, for which the pp wave background becomes a Z2 orbifold of the maximally supersymmetric background by reflection of 4 transverse coordinates. We find operators in the corresponding N = 2 SCFT with the right properties to describe both the untwisted and the twisted sectors of the closed string.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics Publishing.
Keywords:Superstrings and Heterotic Strings; Superstring Vacua; AdS-CFT and dS-CFT Correspondence; Extended Supersymmetry
ID Code:20956
Deposited On:20 Nov 2010 13:17
Last Modified:17 May 2016 05:12

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