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Abstract:

We calculate some extremal and non-extremal four-point functions on the sphere of certain chiral primary operators for strings on AdS 3×S3×T4. The computation is done for small values of the spacetime cross-ratio where global SL(2) and SU(2) descendants may be neglected in the intermediate channel. Ignoring also current algebra descendants, we find that in the non-extremal case the integrated worldsheet correlators factorize into spacetime three-point functions, which is non-trivial due to the integration over the moduli space. We then restrict to the extremal case and compare our results with the four-point correlators recently computed in the dual boundary theory. We also discuss a particular non-extremal correlator involving two chiral and two anti-chiral operators.

Registro:

Documento: Artículo
Título:Worldsheet four-point functions in AdS3/CFT2
Autor:Cardona, C.A.; Kirsch, I.
Filiación:Instituto de Astronomía y Física del Espacio, CONICET-UBA, C. C. 67 - Suc. 28, 1428 Buenos Aires, Argentina
DESY Hamburg, Theory Group, Notkestrasse 85, D-22607 Hamburg, Germany
Palabras clave:AdS-CFT correspondence; Conformal field models in string theory; Sigma models
Año:2011
Volumen:2011
Número:1
DOI: http://dx.doi.org/10.1007/JHEP01(2011)015
Título revista:Journal of High Energy Physics
Título revista abreviado:J. High Energy Phys.
ISSN:11266708
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2011_n1_p_Cardona

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Citas:

---------- APA ----------
Cardona, C.A. & Kirsch, I. (2011) . Worldsheet four-point functions in AdS3/CFT2. Journal of High Energy Physics, 2011(1).
http://dx.doi.org/10.1007/JHEP01(2011)015
---------- CHICAGO ----------
Cardona, C.A., Kirsch, I. "Worldsheet four-point functions in AdS3/CFT2" . Journal of High Energy Physics 2011, no. 1 (2011).
http://dx.doi.org/10.1007/JHEP01(2011)015
---------- MLA ----------
Cardona, C.A., Kirsch, I. "Worldsheet four-point functions in AdS3/CFT2" . Journal of High Energy Physics, vol. 2011, no. 1, 2011.
http://dx.doi.org/10.1007/JHEP01(2011)015
---------- VANCOUVER ----------
Cardona, C.A., Kirsch, I. Worldsheet four-point functions in AdS3/CFT2. J. High Energy Phys. 2011;2011(1).
http://dx.doi.org/10.1007/JHEP01(2011)015