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  The Dilatation Operator of N=4 Super Yang-Mills Theory and Integrability

Beisert, N. (2004). The Dilatation Operator of N=4 Super Yang-Mills Theory and Integrability. Physics Reports, 405(1-3), 1-202. Retrieved from http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVP-4DPT0YN-2&_coverDate=12%2F01%2F2004&_alid=242298305&_rdoc=1&_fmt=&_orig=search&_qd=1&_cdi=5540&_sort=d&view=c&_acct=C000003518&_version=1&_urlVersion=0&_userid=42783&md5=6ad9538f1bab89308f4b500a1368a3d7.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-51B1-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-51B2-5
Genre: Journal Article

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 Creators:
Beisert, Niklas1, Author              
Affiliations:
1Duality & Integrable Structures, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24016              

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 Abstract: The dilatation generator measures the scaling dimensions of local operators in a conformal field theory. In this thesis we consider the example of maximally supersymmetric gauge theory in four dimensions and develop and extend techniques to derive, investigate and apply the dilatation operator. We construct the dilatation operator by purely algebraic means: Relying on the symmetry algebra and structural properties of Feynman diagrams we are able to bypass involved, higher-loop field theory computations. In this way we obtain the complete one-loop dilatation operator and the planar, three-loop deformation in an interesting subsector. These results allow us to address the issue of integrability within a planar four-dimensional gauge theory: We prove that the complete dilatation generator is integrable at one-loop and present the corresponding Bethe ansatz. We furthermore argue that integrability extends to three-loops and beyond. Assuming that it holds indeed, we finally construct a novel spin chain model at five-loops and propose a Bethe ansatz which might be valid at arbitrary loop-order! We illustrate the use of our technology in several examples and also present two key applications for the AdS/CFT correspondence

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Language(s): eng - English
 Dates: 2004
 Publication Status: Published in print
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Title: Physics Reports
Source Genre: Journal
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Pages: - Volume / Issue: 405 (1-3) Sequence Number: - Start / End Page: 1 - 202 Identifier: -