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  Gauge-string duality for (non)supersymmetric deformations of N=4 Super Yang-Mills theory

Frolov, S., Roiban, R., & Tseytlin, A. A. (2005). Gauge-string duality for (non)supersymmetric deformations of N=4 Super Yang-Mills theory. Nuclear Physics B, 731(1-2), 1-44. Retrieved from http://dx.doi.org/10.1016/j.nuclphysb.2005.10.004.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-4D93-8 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-4D94-6
Genre: Journal Article

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Frolov, Sergey1, Author
Roiban, Radu, Author
Tseytlin, Arkady A., Author
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1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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 Abstract: We consider a nonsupersymmetric example of the AdS/CFT duality which generalizes the supersymmetric exactly marginal deformation constructed in hep-th/0502086. The string theory background we use was found in hep-th/0503201 from the AdS5×S5 by a combination of T-dualities and shifts of angular coordinates. It depends on three real parameters γi which determine the shape of the deformed 5-sphere. The dual gauge theory has the same field content as SYM theory, but with scalar and Yukawa interactions “deformed” by γi-dependent phases. The special case of equal γi=γ corresponds to the supersymmetric deformation. We compare the energies of semiclassical strings with three large angular momenta to the 1-loop anomalous dimensions of the corresponding gauge-theory scalar operators and find that they match as it was the case in the SU(3) sector of the standard AdS/CFT duality. In the supersymmetric case of equal γi this extends the result of our previous work (hep-th/0503192) from the 2-spin to the 3-spin sector. This extension turns out to be quite nontrivial. To match the corresponding low-energy effective “Landau–Lifshitz” actions on the string theory and the gauge theory sides one is to make a special choice of the spin chain Hamiltonian representing the 1-loop gauge theory dilatation operator. This choice is adapted to low-energy approximation, i.e., it allows one to capture the right vacuum states and the “macroscopic spin wave” sector of states of the spin chain in the continuum coherent state effective action.

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Language(s): eng - English
 Dates: 2005-12-19
 Publication Status: Issued
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 Identifiers: eDoc: 233375
URI: http://dx.doi.org/10.1016/j.nuclphysb.2005.10.004
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Title: Nuclear Physics B
Source Genre: Journal
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Pages: - Volume / Issue: 731 (1-2) Sequence Number: - Start / End Page: 1 - 44 Identifier: -