BMS supertranslations and not so soft gravitons

doi:10.1007/JHEP05(2017)060

	BMS supertranslations and not so soft gravitons
	Mao, PJ; Conde, E; Mao PJ(毛普健)
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2017
期号	5 页码:60
关键词	Gauge Symmetry Scattering Amplitudes Classical Theories of Gravity
ISSN号	1029-8479
DOI	10.1007/JHEP05(2017)060
文献子类	Article
英文摘要	In a previous article [1], we have argued that Low's sub-leading soft photon theorem can be recovered as a Ward identity associated to the same large gauge transformations that control the leading piece of the theorem. The key for that was to link the energy expansion displayed in the soft theorem to a 1/r expansion that we can perform in the associated asymptotic charge. We expect this idea to be valid in general, and here we provide compelling evidence for it by showing how the same method works in the case of Einstein-Hilbert gravity. More precisely, we are able to derive the three orders of the tree-level soft graviton theorem simply from the BMS supertranslation charge, known to give rise to the leading soft graviton theorem. In particular, we do not need to invoke superrotations (nor extended superrotations) at any point of the argument.
WOS关键词	FLAT SPACE-TIME ; ASYMPTOTIC SYMMETRIES ; GRAVITATIONAL WAVES ; GENERAL RELATIVITY ; SCATTERING ; PHOTONS ; SYSTEMS ; THEOREM
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000401299100002
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284430]
专题	高能物理研究所_理论物理室
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Mao, PJ,Conde, E,Mao PJ. BMS supertranslations and not so soft gravitons[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(5):60.
APA	Mao, PJ,Conde, E,&毛普健.(2017).BMS supertranslations and not so soft gravitons.JOURNAL OF HIGH ENERGY PHYSICS(5),60.
MLA	Mao, PJ,et al."BMS supertranslations and not so soft gravitons".JOURNAL OF HIGH ENERGY PHYSICS .5(2017):60.