Double copy of electric-magnetic duality
Double copy of electric-magnetic duality
复制标题
电磁二象性的双副本
DOI:
10.1103/physrevd.102.046005
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发表时间:
2020
影响因子:
5
通讯作者:
O’Connell, Donal
中科院分区:
文献类型:
--
作者:
Huang, Yu-tin;Kol, Uri;O’Connell, Donal
We argue that the complex transformation relating the Schwarzschild to the Taub-NUT metric, introduced by Talbot, is in fact an electric-magnetic duality transformation. We show that at null infinity, the complex transformation is equivalent to a complexified Bondi-Metzner-Sachs supertranslation, which rotates the supertranslation and the dual (magnetic) supertranslation charges. This can also be seen from the cubic coupling between the classical source and its background, which for Taub-NUT is given by a complex phase rotation acting on gravitational minimal couplings. The same phase rotation generates dyons from electrons at the level of minimally coupled amplitudes, manifesting the double copy relation between the two solutions.
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