New aspects of the BMN correspondence beyond the planar limit

Gutjahr, Petra; Pankiewicz, Ari

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New aspects of the BMN correspondence beyond the planar limit

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Gutjahr, Petra
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Gutjahr, P., & Pankiewicz, A. (2005). New aspects of the BMN correspondence beyond the planar limit. Nuclear Physics B, 704, 583-603. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TVC-4DN2M6B-4-1&_cdi=5531&_user=42783&_orig=search&_coverDate=01%2F10%2F2005&_qd=1&_sk=992959996&view=c&wchp=dGLbVtb-zSkWb&md5=8d898d871e6df2076acc1ede1b75506f&ie=/sdarticle.pdf.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-4E66-6

Abstract

Motivated by recent disagreements in the context of AdS/CFT, we study the non-planar sector of the BMN correspondence. In particular, we reconsider the energy shift of states with two stringy excitations in light-cone string field theory and explicitly determine its complete perturbative contribution from the impurity-conserving channel. Surprisingly, our result neither agrees with earlier leading order computations, nor reproduces the gauge theory prediction. More than that, it features half-integer powers of the effective gauge coupling $\lambda'$ representing a qualitative difference to gauge theory. Based on supersymmetry we argue that the above truncation is not suited for conclusive tests of the BMN duality.