N = 4 Polygonal Wilson Loops: Fermions
N = 4 Polygonal Wilson Loops: Fermions
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N = 4 多边形威尔逊环：费米子
DOI：
10.1007/978-981-13-2179-5_13
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Rossi Marco
中科院分区：
文献类型：
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作者：
Bonini Alfredo;Fioravanti Davide;Piscaglia Simone;Rossi Marco
考虑了标量和费米子对 SYM 中零多边形玻色威尔逊环/胶子 MHV 散射幅度的贡献。我们首先检查强耦合下标量的重新求和。然后，我们解开费米子贡献的形式并展示其强耦合展开。特别地，我们首先导出费米子-反费米子束缚态出现的主导顺序，然后导出其有效的多重束缚态。这再现了弦最小面积结果，并且也适用于理论的 Nekrasov 瞬子配分函数。特别是，在后一种情况下，该方法似乎适合系统扩展。
The contributions of scalars and fermions to the null polygonal bosonic Wilson loops/gluon MHV scattering amplitudes inSYM are considered. We first examine the re-summation of scalars at strong coupling. Then, we disentangle the form of the fermion contribution and show its strong coupling expansion. In particular, we derive the leading order with the appearance of a fermion-anti-fermion bound state first and then effective multiple bound states thereof. This reproduces the string minimal area result and also applies to the Nekrasov instanton partition functionof thetheories. Especially, in the latter case the method appears to be suitable for a systematic expansion.