Kaluza-Klein AdS Virasoro-Shapiro Amplitude near Flat Space

Author(s): Bo Wang (王波), Di Wu (吴迪), and Ellis Ye Yuan (袁野) We bootstrap the first-order correction in the curvature expansion of the Virasoro-Shapiro amplitude in AdS spacetime, for arbitrary Kaluza-Klein charges of external operators. By constructing a universal ansatz based on single-valued multiple polylogarithms as well as an $\mathrm{AdS}×\mathrm{S}$ f… [Phys. Rev. Lett. 135, 041603] Published Thu Jul 24, 2025