Supertranslations in higher dimensions

by Miok Park

Thursday 31 Oct 2024, 12:00 → 13:00 Asia/Seoul

CTPU seminar room (IBS)

I will introduce the main idea, not going to details, about supertranslations in higher dimensions (d>4), which is discussed in gr-qc/0304054,  gr-qc/1502.07644, and hep-th/2304.09330. The first two papers impose different boundary conditions for asymptotically flat spacetime at null infinity and so have different conclusion on supertranslation: the former argues that there is no supertranslations in higher dimensions but the later insists there exist. The last paper explains how Noether charge can be constructed in the latter case.