String corrections to circular Wilson loop and anomalies

String corrections to circular Wilson loop and anomalies

Abstract We study string quantum corrections to the ratio of latitude and circular Wilson loops in N $$ \mathcal{N} $$ = 4 super-Yang-Mills theory at strong coupling. Conformal gauge for the corresponding minimal surface in AdS5 × S 5 is singular and we show that an IR anomaly associated with the di...

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Bibliographic Details
Main Authors: Alessandra Cagnazzo, Daniel Medina-Rincon, Konstantin Zarembo
Format: Article
Language:English
Published: SpringerOpen 2018-02-01
Series:Journal of High Energy Physics
Subjects:
AdS-CFT Correspondence
Wilson
’t Hooft and Polyakov loops
Online Access:http://link.springer.com/article/10.1007/JHEP02(2018)120
Description
Summary:Abstract We study string quantum corrections to the ratio of latitude and circular Wilson loops in N $$ \mathcal{N} $$ = 4 super-Yang-Mills theory at strong coupling. Conformal gauge for the corresponding minimal surface in AdS5 × S 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 evaluting phaseshifts for all the fluctuation modes.
ISSN:1029-8479

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