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This question arises in my project of finding the conformal field theory dual to the bosonic part of the Yang-Mills theory, i.e. non-supersymmetric large $N$ YM theory. Supersymmetry is a constant setup in most of AdS/CFT solutions, but I wonder if SUSY is absolutely necessary for the duality? By focusing on the bosonic spectrum in the correspondence and neglecting the fermions, can gauge/gravity duality be established without SUSY? (I'm not against SUSY, but calculations will be much easier without it.)
http://arxiv.org/abs/hep-th/9901101, old paper from Klebanov and Tseytlin about non-SUSY CFT dual to type 0 string theory in AdS_5xS_5;
http://arxiv.org/abs/hep-th/0207076, non-SUSY deformation of AdS/CFT showing correspondence without SUSY;
http://arxiv.org/abs/0806.4068, non-SUSY CFT dual to 11D gravity M-theory (ABJM)
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