On the pp-wave limit and the BMN structure of new Sasaki-Einstein spaces

Abstract

We construct the pp-wave string associated with the Penrose limit of $Y^{p,q}$ and $L^{p,q,r}$ families of Sasaki-Einstein geometries. We identify in the dual quiver gauge theories the chiral and the non-chiral operators that correspond to the ground state and the first excited states. We present an explicit identification in a prototype model of $L^{1,7,3}$.

21 pages, JHEP format, 5 figures, acknowledgement corrected

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