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  BMN Correlators and Operator Mixing in N=4 Super Yang-Mills Theory

Beisert, N., Kristjansen, C., Plefka, J., Semenoff, G., & Staudacher, M. (2003). BMN Correlators and Operator Mixing in N=4 Super Yang-Mills Theory. Nuclear Physics B, 650(1-2), 125-161.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-524F-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-5250-C
Genre: Journal Article

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 Creators:
Beisert, Niklas1, Author              
Kristjansen, Charlotte2, Author
Plefka, Jan2, Author
Semenoff, G., Author
Staudacher, Matthias2, Author              
Affiliations:
1Duality & Integrable Structures, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24016              
2Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24014              

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 Abstract: Correlation functions in perturbative N=4 supersymmetric Yang-Mills theory are examined in the Berenstein-Maldacena-Nastase (BMN) limit. We demonstrate that non-extremal four-point functions of chiral primary fields are ill-defined in that limit. This lends support to the assertion that only gauge theoretic two-point functions should be compared to pp-wave strings. We further refine the analysis of the recently discovered non-planar corrections to the planar BMN limit. In particular, a full resolution to the genus one operator mixing problem is presented, leading to modifications in the map between BMN operators and string states. We give a perturbative construction of the correct operators and we identify their anomalous dimensions. We also distinguish symmetric, antisymmetric and singlet operators and find, interestingly, the same torus anomalous dimension for all three. Finally, it is discussed how operator mixing effects modify three point functions at the classical level and, at one loop, allow us to recover conformal invarianc

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Language(s): eng - English
 Dates: 2003-02-03
 Publication Status: Published in print
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 Identifiers: eDoc: 3100
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Title: Nuclear Physics B
Source Genre: Journal
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Pages: - Volume / Issue: 650 (1-2) Sequence Number: - Start / End Page: 125 - 161 Identifier: -