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arXiv · 1712.08684

The Radiative Double Copy for Einstein-Yang-Mills Theory

David Chester
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Abstract

Recently, a double-copy formalism was used to calculate gravitational radiation from classical Yang-Mills radiation solutions. This work shows that Yang-Mills theory coupled to a biadjoint scalar field admits a radiative double copy that agrees with solutions in Einstein-Yang-Mills theory at the lowest finite order. Within this context, the trace-reversed metric $\bar{h}^{\mu\nu}$ is a natural double copy of the gauge boson $A^{\mu a}$. This work provides additional evidence that solutions in gauge and gravity theories are related, even though their respective Lagrangians and nonlinear equations of motion appear to be different.

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David Chester. 2017-12-22. The Radiative Double Copy for Einstein-Yang-Mills Theory. https://doi.org/10.1103/physrevd.97.084025

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