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  From weak coupling to spinning strings

Freyhult, L., Rej, A., & Zieme, S. (2010). From weak coupling to spinning strings. Journal of High Energy Physics, 2010(02): 050. doi:10.1007/JHEP02(2010)050.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-6143-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-6145-D
Genre: Journal Article

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0911.2458v1.pdf (Preprint), 276KB
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 Creators:
Freyhult, Lisa, Author
Rej, Adam, Author
Zieme, Stefan1, Author              
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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 Abstract: We identify the gauge theory dual of a spinning string of minimal energy with spins S_1, S_2 on AdS_5 and charge J on S^5. For this purpose we focus on a certain set of local operators with two different types of covariant derivatives acting on complex scalar fields. We analyse the corresponding nested Bethe equations for the ground states in the limit of large spins. The auxiliary Bethe roots form certain string configurations in the complex plane, which enable us to derive integral equations for the leading and sub-leading contribution to the anomalous dimension. The results can be expressed through the observables of the sl(2) sub-sector, i.e. the cusp anomaly f(g) and the virtual scaling function B_L(g), rendering the strong-coupling analysis straightforward. Furthermore, we also study a particular sub-class of these operators specialising to a scaling limit with finite values of the second spin at weak and strong coupling.

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 Dates: 2010
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: DOI: 10.1007/JHEP02(2010)050
Other: arXiv:0911.2458
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Title: Journal of High Energy Physics
Source Genre: Journal
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Publ. Info: Bologna, Italy : Società italiana di fisica
Pages: - Volume / Issue: 2010 (02) Sequence Number: 050 Start / End Page: - Identifier: Other: 111021927548002
Other: 1126-6708