On holographic three point functions for GKP strings from integrability
Oct, 201162 pages
Published in:
- JHEP 01 (2012) 110,
- JHEP 06 (2012) 150 (erratum)
e-Print:
- 1110.3949 [hep-th]
Report number:
- UT-KOMABA-11-9
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Abstract: (arXiv)
Adapting the powerful integrability-based formalism invented previously for the calculation of gluon scattering amplitudes at strong coupling, we develop a method for computing the holographic three point functions for the large spin limit of Gubser-Klebanov- Polyakov (GKP) strings. Although many of the ideas from the gluon scattering problem can be transplanted with minor modifications, the fact that the information of the external states is now encoded in the singularities at the vertex insertion points necessitates several new techniques. Notably, we develop a new generalized Riemann bilinear identity, which allows one to express the area integral in terms of appropriate contour integrals in the presence of such singularities. We also give some general discussions on how semiclassical vertex operators for heavy string states should be constructed systematically from the solutions of the Hamilton-Jacobi equation.Note:
- 62 pages/v2 Typos and equation (3.7) corrected. Clarifying remarks added in Section 4.1. Published version/v3 Minor errors found in version 2 are corrected. For explanation of the revision, see Erratum published in http://www.springerlink.com/content/m67055235407vx67/?MUD=MP
- n-point function: 3
- Hamilton-Jacobi equation: solution
- gluon: scattering amplitude
- operator: vertex
- spin: high
- string
- holography
- integrability
- anti-de Sitter
- WKB approximation
References(50)
Figures(15)