Compactifying the Kerr-Schild double copy

• DOI: 10.1007/jhep05(2023)198
• Publication Date: 2023-05-26T03:28:20Z
• Authors: Ross Dempsey; Peter Weck
• Keywords: High Energy Physics - Theory; Black Holes; High Energy Physics - Theory (hep-th); Nuclear and particle physics. Atomic energy. Radioactivity; 0103 physical sciences; FOS: Physical sciences; QC770-798; Classical Theories of Gravity; 01 natural sciences; Gauge-Gravity Correspondence

We show that the classical double copy relationship for Kerr-Schild spacetimes can be dimensionally reduced to give a natural notion of Kaluza-Klein theory with gravity coupled gauge field and dilaton. Under dimensional reduction (KS) ansatz becomes stringy (sKS) introduced by Wu. This captures many black hole solutions, including single-charge holes arising in both gauged ungauged supergravity theories. identify single scalar an arbitrary sKS solution. boost-reduction procedure generating charged solutions generalized any stationary KS seed, used combine metric zeroth copies seed into Furthermore, we comment on multi-charge written multi-sKS form, proposing interpretation involving multiple sectors.