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Holographic two-point functions for Janus interfaces in the D1/D5 CFT

MPG-Autoren
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Chiodarolia,  Marco
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Korovins,  Jegor
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Volltexte (frei zugänglich)

1612.08916.pdf
(Preprint), 932KB

JHEP04(2017)145.pdf
(Verlagsversion), 645KB

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Zitation

Chiodarolia, M., Estes, J., & Korovins, J. (2017). Holographic two-point functions for Janus interfaces in the D1/D5 CFT. Journal of high energy physics: JHEP, 2017(04): 145. doi:10.1007/JHEP04(2017)145.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-002C-7EBF-B
Zusammenfassung
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 two-point function computation for a fully-backreacted, top-down holographic defect.