arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1703.07884hep-thgr-qc
收藏

空间无穷远处的渐近$U(1)$电荷

Asymptotic $U(1)$ charges at spatial infinity

Miguel Campiglia, Rodrigo Eyheralde

摘要:

闵可夫斯基时空中的大规范对称性通常在两个不同的区域进行研究:要么在渐近(过去或未来)时间,要么在空间无限远。通过在调和规范下的工作,我们提供了一个适用于两个区域的大规范对称性(及其相关电荷)的统一描述。在空间无穷远处,电荷是守恒的,并在渐近的过去和未来定义的电荷之间插值。这解释了渐近过去和未来电荷的相等性,正如最近在温伯格的软光子定理中提出的那样。

英文摘要:

Large gauge symmetries in Minkowski spacetime are often studied in two distinct regimes: either at asymptotic (past or future) times or at spatial infinity. By working in harmonic gauge, we provide a unified description of large gauge symmetries (and their associated charges) that applies to both regimes. At spatial infinity the charges are conserved and interpolate between those defined at the asymptotic past and future. This explains the equality of asymptotic past and future charges, as recently proposed in connection with Weinberg's soft photon theorem.

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。

↑