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Double Kerr-Schild spacetimes and the Newman-Penrose map

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3]
  1. University of Geneva (Switzerland)
  2. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States). Theoretical Division
  3. Brown University, Providence, RI (United States)
The Newman-Penrose map, which is closely related to the classical double copy, associates certain exact solutions of Einstein’s equations with self-dual solutions of the vacuum Maxwell equations. Here we initiate an extension of the Newman-Penrose map to a broader class of spacetimes. As an example, we apply principles from the Newman-Penrose map to associate a self-dual gauge field to the Kerr-Taub-NUT-(A)dS spacetime and we show that the result agrees with previously studied examples of classical double copies. The corresponding field strength exhibits a discrete electric-magnetic duality that is distinct from its (Hodge star) self-dual property.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Laboratory Directed Research and Development (LDRD) Program; Swiss National Science Foundation; Simons Foundation
Grant/Contract Number:
89233218CNA000001; AC52-06NA25396
OSTI ID:
2329248
Report Number(s):
LA-UR--23-26863
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 10 Vol. 2023; ISSN 1029-8479
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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