Citation

BibTex format

@article{Jiang:2024:10.1007/JHEP07(2024)280,
author = {Jiang, H and Tseytlin, AA},
doi = {10.1007/JHEP07(2024)280},
journal = {Journal of High Energy Physics},
title = {On co-dimension 2 defect anomalies in N = 4 SYM and (2,0) theory via brane probes in AdS/CFT},
url = {http://dx.doi.org/10.1007/JHEP07(2024)280},
volume = {2024},
year = {2024}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We consider a 12-BPS solution for a D3 brane probe in AdS5× S5 that has world-volume geometry of AdS3× S1. It intersects the boundary over a surface that represents a dimension 2 defect in the boundary N = 4 SYM theory. The effective action of the probe brane is proportional to the logarithmically divergent volume of AdS3 and may thus be interpreted as computing conformal anomaly of supersymmetric S2 defect. The classical action scales as N. We compute the 1-loop correction to it due to quantum fluctuations of the D3 brane world-volume fields and compare the result to an earlier suggested expression for the defect anomaly. We also perform a similar analysis of a 12-BPS M5 brane probe solution in AdS7× S4 with the world-volume geometry of AdS5× S1 that represents a dimension 4 defect in the boundary (2,0) 6d theory. Here the classical M5 brane action computes the leading order N2 term in a-anomaly of the supersymmetric S4 defect. We perform a detailed computation of the 1-loop correction to the M5 brane effective action and thus provide a prediction for the subleading constant in the S4 defect a-anomaly coefficient.
AU  - Jiang,H
AU  - Tseytlin,AA
DO  - 10.1007/JHEP07(2024)280
PY  - 2024///
TI  - On co-dimension 2 defect anomalies in N = 4 SYM and (2,0) theory via brane probes in AdS/CFT
T2  - Journal of High Energy Physics
UR  - http://dx.doi.org/10.1007/JHEP07(2024)280
VL  - 2024
ER  -
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