Generalized quark-antiquark potential at weak and strong coupling
Generalized quark-antiquark potential at weak and strong coupling
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DOI：
10.1007/jhep06(2011)131
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发表时间：
2011-05
影响因子：
5.4
通讯作者：
N. Drukker;V. Forini
中科院分区：
文献类型：
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作者：
N. Drukker;V. Forini
本文研究了超对称Yang-Mills理论中的一类双参数Wilson环算子族，它在1/2BPS直线或圆与一对反平行直线之间光滑插值.这些观测量捕捉到了夸克-反夸克势的自然推广。我们计算这些环的规范理论方面的第二阶微扰理论和弦理论的半经典展开单圈的顺序。由此产生的决定因素给出的积分形式，并可以评估数值的一般值的参数或分析在一个系统的扩展周围的1/2 BPS配置。我们评论的可行性，推导出所有的循环结果，这些威尔逊循环。
We study a two-parameter family of Wilson loop operators insuper-symmetric Yang-Mills theory which interpolates smoothly between the 1/2 BPS line or circle and a pair of antiparallel lines. These observables capture a natural generalization of the quark-antiquark potential. We calculate these loops on the gauge theory side to second order in perturbation theory and in a semiclassical expansion in string theory to one-loop order. The resulting determinants are given in integral form and can be evaluated numerically for general values of the parameters or analytically in a systematic expansion around the 1/2 BPS configuration. We comment about the feasibility of deriving all-loop results for these Wilson loops.