Magnetic soft charges, dual supertranslations, and ’t Hooft line dressings
Magnetic soft charges, dual supertranslations, and ’t Hooft line dressings
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磁性软电荷、双超平移和 t Hooft 线敷料
DOI：
10.1103/physrevd.102.025001
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发表时间：
2019
影响因子：
5
通讯作者：
R. Akhoury
中科院分区：
文献类型：
--
作者：
Sangmin Choi;R. Akhoury
在电荷和磁荷的量子场论中，我们构造了Faddeev-Kulish渐近态。我们发现有两种敷料：除了众所周知的(电)威尔逊线敷料外，还有一种磁力对应物，可以写成t Hooft线操作符。T Hooft线敷料在磁性大规格变换(LGT)下带电，但在电LGT下是中性的。这与电子的Faddeev-Kulish装饰物形成对比，后者可以写成威尔逊线操作符，在电LGT下带电，但在磁性LGT下是中性的。通过这些修饰和相干态的相应构造，保证了电荷和磁荷理论的红外有限性。即使在没有磁单极子的情况下，电磁软模也表现出真空麦克斯韦理论的电磁对偶性。根据Strominger的猜想，主要的磁性敷料和主要的电子敷料一样，在电荷和磁荷场理论中是精确的。然后我们将这种构造推广到渐近平坦时空中的微扰量子引力，并构造了在对偶超平移下带电的引力t Hooft线敷料。因此，电荷和磁软电荷及其敷料之间的二元性得到了明显的体现。
We construct the Faddeev-Kulish asymptotic states in a quantum field theory of electric and magnetic charges. We find that there are two kind of dressings: apart from the well know (electric) Wilson line dressing, there is a magnetic counterpart which can be written as a 't Hooft line operator. The 't Hooft line dressings are charged under the magnetic large gauge transformation (LGT), but are neutral under electric LGT. This is in contrast to the Faddeev-Kulish dressings of electrons, which can be written as a Wilson line operator and are charged under electric LGT but neutral under magnetic LGT. With these dressings and the corresponding construction of the coherent states, the infrared finiteness of the theory of electric and magnetic charges is guaranteed. Even in the absence of magnetic monopoles, the electric and magnetic soft modes exhibit the electromagnetic duality of vacuum Maxwell theory. The leading magnetic dressings, like the leading electric ones, are exact in the field theory of electric and magnetic charges, in accordance with a conjecture of Strominger. We then extend the construction to perturbative quantum gravity in asymptotically flat spacetime, and construct gravitational 't Hooft line dressings that are charged under dual supertranslations. The duality between the electric and magnetic soft charges and their dressings is thus made manifest.
电磁二象性的双副本
影响因子：
5
作者：
Huang, Yu-tin;Kol, Uri;O’Connell, Donal
通讯作者：
O’Connell, Donal