String corrections to circular Wilson loop and anomalies
High Energy Physics - Theory
2018-04-04 v2
Abstract
We study string quantum corrections to the ratio of latitude and circular Wilson loops in N=4 super-Yang-Mills theory at strong coupling. Conformal gauge for the corresponding minimal surface in AdS(5)xS(5) is singular and we show that an IR anomaly associated with the divergence in the conformal factor removes previously reported discrepancy with the exact field-theory result. We also carefully check conformal anomaly cancellation and recalculate fluctuation determinants by directly evaluating phaseshifts for all the fluctuation modes.
Cite
@article{arxiv.1712.07730,
title = {String corrections to circular Wilson loop and anomalies},
author = {Alessandra Cagnazzo and Daniel Medina-Rincon and Konstantin Zarembo},
journal= {arXiv preprint arXiv:1712.07730},
year = {2018}
}
Comments
26 pages, 3 figures; v2: minor misprints corrected, no changes in the equations