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arXiv 1806.01901hep-thgr-qc
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软电荷与电磁对偶性

Soft Charges and Electric-Magnetic Duality

V. Hosseinzadeh, A. Seraj, M. M. Sheikh-Jabbari

摘要:

本文的主要工作是研究四维麦克斯韦理论中的磁软荷。施加适当的渐近衰减条件,我们计算的电和磁的软电荷和它们的代数在空间和零无穷大。当两个电软电荷或两个磁软电荷的换位子为零时,电软电荷和磁软电荷满足复$U(1)$电流代数。这个当前代数通过Sugawara构造产生两个$U(1)$卡茨-穆迪代数。我们重复了在电磁对偶对称Maxwell理论中的电荷分析,并构造了电和磁软电荷产生各自的边界规范变换的对偶对称相空间。证明了电磁对偶的生成元和电磁软荷构成了$iso(2)$代数的无限个拷贝。此外,我们还研究了与背景闵可夫斯基时空的整体庞加莱对称性和软荷相关的荷代数。讨论了荷的物理意义和蕴涵,以及荷的代数。

英文摘要:

The main focus of this work is to study magnetic soft charges of the four dimensional Maxwell theory. Imposing appropriate asymptotic falloff conditions, we compute the electric and magnetic soft charges and their algebra both at spatial and at null infinity. While the commutator of two electric or two magnetic soft charges vanish, the electric and magnetic soft charges satisfy a complex $U(1)$ current algebra. This current algebra through Sugawara construction yields two $U(1)$ Kac-Moody algebras. We repeat the charge analysis in the electric-magnetic duality-symmetric Maxwell theory and construct the duality-symmetric phase space where the electric and magnetic soft charges generate the respective boundary gauge transformations. We show that the generator of the electric-magnetic duality and the electric and magnetic soft charges form infinite copies of $iso(2)$ algebra. Moreover, we study the algebra of charges associated with the global Poincaré symmetry of the background Minkowski spacetime and the soft charges. We discuss physical meaning and implication of our charges and their algebra.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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