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The classical double copy of a point charge

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Title
The classical double copy of a point charge
Author(s)
Kwangeon Kim; Kanghoon Lee; Ricardo Monteiro; Isobel Nicholson; David Peinador Veiga
Publication Date
2020-02
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v., no.2, pp.046 -
Publisher
SPRINGER
Abstract
The classical double copy relates solutions to the equations of motion in gauge theory and in gravity. In this paper, we present two double-copy formalisms for relating the Coulomb solution in gauge theory to the two-parameter Janis-Newman-Winicour solution in gravity. The latter is a static, spherically symmetric, asymptotically fiat solution that generically includes a dilaton field, but also admits the Schwarzschild solution as a special case. We first present the classical double copy as a perturbative construction, similar to its formulation for scattering amplitudes, and then present it as an exact map, with a novel generalisation of the Kerr-Schild double copy motivated by double field theory. The latter formalism exhibits the relation between the Kerr-Schild classical double copy and the string theory origin of the double copy for scattering amplitudes. c The Authors.
URI
https://pr.ibs.re.kr/handle/8788114/7242
ISSN
1029-8479
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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