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arXiv · hep-th/0204026

PP-Waves and Holography

Robert G. Leigh·Kazumi Okuyama·Moshe Rozali
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Abstract

We consider aspects of holography in the $pp$-wave limit of $AdS_5\times S5$. This geometry contains two $\RR4$'s, one obtained from $AdS_5$ directions, and the other from the $S 5$. We argue that the holographic direction in the $pp$-wave background can be taken to be $r$, the radial direction in the first $\RR4 $. Normalizable modes correspond to states, and non-normalizable modes correspond to deformations of the boundary theory. In the strict $pp$-wave limit, there are additional non-normalizable modes in the second $\RR 4$, which have no apparent super-Yang-Mills interpretation. We outline the procedure for calculating correlation functions holographically.

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Robert G. Leigh, Kazumi Okuyama, Moshe Rozali. 2002-04-02. PP-Waves and Holography. https://doi.org/10.1103/physrevd.66.046004

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