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arXiv · 2411.04774

Weyl double copy in type D spacetime in four and five dimensions

Weicheng Zhao·Pu-Jian Mao·Jun-Bao Wu
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Abstract

In this paper, we present a second realization of the Weyl double copy (WDC) in four-dimensional algebraic type D spacetime. We show that any type D vacuum solution admits an algebraically general Maxwell scalar on the curved background that squares to give the Weyl scalar. The WDC relation defines a scalar field that satisfies the Klein-Gordon equation sourced by the Weyl scalar on the curved background. We then extend the type D WDC to five dimensions.

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Weicheng Zhao, Pu-Jian Mao, Jun-Bao Wu. 2024-11-07. Weyl double copy in type D spacetime in four and five dimensions. https://doi.org/10.1103/physrevd.111.066005

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