New aspects of the BMN correspondence beyond the planar limit

Petra Gutjahr; Ari Pankiewicz

doi:10.1016/j.nuclphysb.2004.10.016

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arXiv · hep-th/0407098

New aspects of the BMN correspondence beyond the planar limit

Petra Gutjahr·Ari Pankiewicz

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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 $λ'$ 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.

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Petra Gutjahr, Ari Pankiewicz. 2004-07-13. New aspects of the BMN correspondence beyond the planar limit. https://doi.org/10.1016/j.nuclphysb.2004.10.016

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