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Holographic two-point functions for Janus interfaces in the D1/D5 CFT
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
Long Isl Univ, Dept Phys, 1 Univ Plaza, Brooklyn, NY 11201 USA..
Max Planck Inst Gravitat Phys, Albert Einstein Inst, Muhlenberg 1, D-14476 Golm, Germany..
2017 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 4, 145Article in journal (Refereed) Published
Abstract [en]

This paper investigates scalar perturbations in the top-down supersymmetric Janus solutions dual to conformal interfaces in the D1/D5 CFT, finding analytic closed-form solutions. We obtain an explicit representation of the bulk-to-bulk propagator and extract the two-point correlation function of the dual operator with itself, whose form is not fixed by symmetry alone. We give an expression involving the sum of conformal blocks associated with the bulk-defect operator product expansion and briefly discuss finite-temperature extensions. To our knowledge, this is the first computation of a two-point function which is not completely determined by symmetry for a fully-backreacted, top-down holographic defect.

Place, publisher, year, edition, pages
2017. no 4, 145
Keyword [en]
AdS-CFT Correspondence, Conformal Field Models in String Theory
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-323460DOI: 10.1007/JHEP04(2017)145ISI: 000400279200003OAI: oai:DiVA.org:uu-323460DiVA: diva2:1106383
Funder
Knut and Alice Wallenberg Foundation
Available from: 2017-06-07 Created: 2017-06-07 Last updated: 2017-06-07Bibliographically approved

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Chiodaroli, Marco

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