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A light-cone approach to three-point functions in AdS(5) x S-5
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
2012 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, no 4, 80- p.Article in journal (Refereed) Published
Abstract [en]

We consider worldsheet correlation functions for strings in AdS(5) x S-5 using a light-cone gauge for the worldsheet theory. We compute the saddle-point approximation to three-point functions of BMN vertex operators, all with large charges, by explicitly finding the intersection of three euclidean BMN strings. We repeat this calculation for non-BPS circular winding strings extended along a great circle of the S5, though in this case the appropriate form of the vertex operator is uncertain. Furthermore, we compute the spectrum of fluctuations about euclidean BMN strings for generic boundary conditions, and show that the spectrum depends only on the total charge and not the details of the string configuration. We extend our considerations to include near-BMN vertex operators and through the evaluation of the string path integral make contact with the light-cone string field theory calculations of gauge theory three-point structure constants.

Place, publisher, year, edition, pages
2012. no 4, 80- p.
Keyword [en]
AdS-CFT Correspondence, Penrose limit and pp-wave background, Integrable Field Theories
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-178924DOI: 10.1007/JHEP04(2012)080ISI: 000304148100006OAI: oai:DiVA.org:uu-178924DiVA: diva2:542842
Available from: 2012-08-03 Created: 2012-08-02 Last updated: 2012-08-03Bibliographically approved

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