論文

査読有り
2017年8月

BMS supertranslations and memory in four and higher dimensions

CLASSICAL AND QUANTUM GRAVITY
  • Stefan Hollands
  • ,
  • Akihiro Ishibashi
  • ,
  • Robert M. Wald

34
15
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1088/1361-6382/aa777a
出版者・発行元
IOP PUBLISHING LTD

We consider the memory effect in even dimensional spacetimes of dimension d >= 4 arising from a burst of gravitational radiation. When d = 4, the natural frames in the stationary eras before and after the burst differ by the composition of a boost and supertranslation, and this supertranslation characterizes the 'memory effect', i.e. the permanent displacement of test particles near infinity produced by the radiation burst. However, we show that when d > 4, this supertranslation and the corresponding memory effect vanish. Consequently, when d > 4, it is natural to impose stronger asymptotic conditions at null infinity that reduce the asymptotic symmetry group to the Poincare group. Conversely, when d = 4, the asymptotic symmetry group at null infinity must be taken to be the BMS group.

リンク情報
DOI
https://doi.org/10.1088/1361-6382/aa777a
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000404881700005&DestApp=WOS_CPL
ID情報
  • DOI : 10.1088/1361-6382/aa777a
  • ISSN : 0264-9381
  • eISSN : 1361-6382
  • Web of Science ID : WOS:000404881700005

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