BPS wilson loops in generic conformal $$ \mathcal{N} $$ = 2 SU(N) SYM theories
BPS wilson loops in generic conformal $$ \mathcal{N} $$ = 2 SU(N) SYM theories
复制标题
通用共形 $$ mathcal{N} $$ = 2 SU(N) SYM 理论中的 BPS 威尔逊循环
DOI:
10.1007/jhep08(2019)108
复制
发表时间:
2019
影响因子:
5.4
通讯作者:
A. Lerda
中科院分区:
文献类型:
--
作者:
M. Billò;F. Galvagno;A. Lerda
Abstract
We consider the 1/2 BPS circular Wilson loop in a generic
$$ \mathcal{N} $$
N
= 2 SU(N) SYM theory with conformal matter content. We study its vacuum expectation value, both at finite N and in the large-N limit, using the interacting matrix model provided by localization results. We single out some families of theories for which the Wilson loop vacuum expectation values approaches the
$$ \mathcal{N} $$
N
= 4 result in the large-N limit, in agreement with the fact that they possess a simple holographic dual. At finite N and in the generic case, we explicitly compare the matrix model result with the field-theory perturbative expansion up to order g
8 for the terms proportional to the Riemann value ζ (5), finding perfect agreement. Organizing the Feynman diagrams as suggested by the structure of the matrix model turns out to be very convenient for this computation.
影响因子:
5.4
作者:
V. Mitev;E. Pomoni
通讯作者:
V. Mitev;E. Pomoni