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Citation

BibTex format

@article{Beccaria:2026:10.1016/j.nuclphysb.2026.117387,
author = {Beccaria, M and Kurlyand, SA and Tseytlin, AA},
doi = {10.1016/j.nuclphysb.2026.117387},
journal = {Nuclear Physics B},
title = {Strong coupling expansion of 12 BPS Wilson loop in SYM theory and 2-loop Green-Schwarz string in AdS5×S5},
url = {http://dx.doi.org/10.1016/j.nuclphysb.2026.117387},
volume = {1025},
year = {2026}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The exact localization result for the expectation value of the 12 BPS circular Wilson loop in N=4 SYM theory is given in the planar limit by the famous Bessel function expression: W=2NλI<inf>1</inf>(λ). Expanded in large λ and expressed in terms of the AdS<inf>5</inf> × S <sup>5</sup> string tension T=λ2π this gives W=T2πg<inf>s</inf>e<sup>2πT</sup>(1−316πT<sup>−1</sup>+…).The exponential is matched by the value of the action of the string with the AdS<inf>2</inf> world volume while the prefactor comes from the 1-loop GS string correction. Here we address the question of how the subleading T<sup>−1</sup> term could be reproduced by the 2-loop correction in the corresponding partition function of the AdS<inf>5</inf> × S <sup>5</sup> GS string expanded near the AdS<inf>2</inf> minimal surface. We find that the string correction contains a non-zero UV logarithmic divergence implying that comparison with the SYM result requires a particular subtraction prescription. We discuss implications of this conclusion for checking the AdS/CFT duality at strong coupling.
AU  - Beccaria,M
AU  - Kurlyand,SA
AU  - Tseytlin,AA
DO  - 10.1016/j.nuclphysb.2026.117387
PY  - 2026///
SN  - 0550-3213
TI  - Strong coupling expansion of 12 BPS Wilson loop in SYM theory and 2-loop Green-Schwarz string in AdS5×S5
T2  - Nuclear Physics B
UR  - http://dx.doi.org/10.1016/j.nuclphysb.2026.117387
VL  - 1025
ER  -
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