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  Stringing Spins and Spinning Strings

Beisert, N., Minahan, J. A., Staudacher, M., & Zarembo, K. (2003). Stringing Spins and Spinning Strings. Journal of High Energy Physics, 2003(9): 010.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-5305-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-5307-A
Genre: Journal Article

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 Creators:
Beisert, Niklas1, Author              
Minahan, J. A., Author
Staudacher, Matthias2, Author              
Zarembo, K., 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: We apply recently developed integrable spin chain and dilatation operator techniques in order to compute the planar one-loop anomalous dimensions for certain operators containing a large number of scalar fields in N = 4 Super Yang-Mills. The first set of operators, belonging to the SO(6) representations [J, L − 2J, J], interpolate smoothly between the BMN case of two impurities (J = 2) and the extreme case where the number of impurities equals half the total number of fields (J = L/2). The result for this particular [J, 0, J] operator is smaller than the anomalous dimension derived by Frolov and Tseytlin [hep-th/0304255] for a semiclassical string configuration which is the dual of a gauge invariant operator in the same representation. We then identify a second set of operators which also belong to [J, L− 2J, J] representations, but which do not have a BMN limit. In this case the anomalous dimension of the [J, 0, J] operator does match the Frolov-Tseytlin prediction. We also show that the fluctuation spectra for this [J, 0, J] operator is consistent with the string prediction.

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 Dates: 2003
 Publication Status: Published in print
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 Identifiers: eDoc: 51040
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Title: Journal of High Energy Physics
Source Genre: Journal
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Pages: - Volume / Issue: 2003 (9) Sequence Number: 010 Start / End Page: - Identifier: -