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Higher-Loop Integrability in N=4 Gauge Theory

Niklas Beisert
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Abstract

The dilatation operator measures scaling dimensions of local operator in a conformal field theory. Algebraic methods of constructing the dilatation operator in four-dimensional N=4 gauge theory are reviewed. These led to the discovery of novel integrable spin chain models in the planar limit. Making use of Bethe ansaetze, a superficial discrepancy in the AdS/CFT correspondence was found, we discuss this issue and give a possible resolution.

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Niklas Beisert. 2004-10-28. Higher-Loop Integrability in N=4 Gauge Theory. https://doi.org/10.1016/j.crhy.2004.09.011

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