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Abstract:

We continue the study of a recently proposed solvable irrelevant deformation of an AdS3/CFT2 correspondence that leads in the UV to a theory with Hagedorn spectrum. This can be thought of as a single trace analog of the TT¯ -deformation of the dual CFT2. Here we focus on the deformed worldsheet theory in presence of a conformal boundary. First, we compute the expectation value of a bulk primary operator on the disc geometry. We give a closed expression for such observable, from which we obtain the anomalous conformal dimension induced by the deformation. We compare the result with that coming from the computation of the 2-point correlation function on the sphere, finding exact agreement. We perform the computation using different techniques and making a comparative analysis of different regularization schemes to solve the logarithmically divergent integrals. This enables us to perform further consistency checks of our result by computing other observables of the deformed theory: we compute both the bulk-boundary 2-point and the boundary-boundary 2-point functions and are able to reproduce the anomalous dimensions of both boundary and bulk operators. © 2018, The Author(s).

Registro:

Documento: Artículo
Título:TT¯ type deformation in the presence of a boundary
Autor:Babaro, J.P.; Foit, V.F.; Giribet, G.; Leoni, M.
Filiación:Departamento de Física, Universidad de Buenos Aires & IFIBA — CONICET, Ciudad Universitaria, pabellón 1 (1428), Buenos Aires, Argentina
Center for Cosmology and Particle Physics, Physics Department, New York University, 726 Broadway, New York, NY 10003, United States
Palabras clave:AdS-CFT Correspondence; Bosonic Strings; Conformal Field Theory; Sigma Models
Año:2018
Volumen:2018
Número:8
DOI: http://dx.doi.org/10.1007/JHEP08(2018)096
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_v2018_n8_p_Babaro

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Citas:

---------- APA ----------
Babaro, J.P., Foit, V.F., Giribet, G. & Leoni, M. (2018) . TT¯ type deformation in the presence of a boundary. Journal of High Energy Physics, 2018(8).
http://dx.doi.org/10.1007/JHEP08(2018)096
---------- CHICAGO ----------
Babaro, J.P., Foit, V.F., Giribet, G., Leoni, M. "TT¯ type deformation in the presence of a boundary" . Journal of High Energy Physics 2018, no. 8 (2018).
http://dx.doi.org/10.1007/JHEP08(2018)096
---------- MLA ----------
Babaro, J.P., Foit, V.F., Giribet, G., Leoni, M. "TT¯ type deformation in the presence of a boundary" . Journal of High Energy Physics, vol. 2018, no. 8, 2018.
http://dx.doi.org/10.1007/JHEP08(2018)096
---------- VANCOUVER ----------
Babaro, J.P., Foit, V.F., Giribet, G., Leoni, M. TT¯ type deformation in the presence of a boundary. J. High Energy Phys. 2018;2018(8).
http://dx.doi.org/10.1007/JHEP08(2018)096