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hep-th2025
Newtonian potential from scattering amplitudes in super-renormalizable gravity
Haiyuan Feng, Rong-Jia Yang, Jinjun Zhang
Based on the classical limit of relativistic scattering amplitudes, we compute the coupling between a general super-renormalizable gravity and massive scalar particles. This allows…
gr-qc2025
The stability of the de-Sitter universe in nonlocal gravity
Haiyuan Feng, Rong-Jia Yang
We constructed the ghost-free condition for nonlocal gravity using de-Sitter background field expansion and identified the structure of the nontrivial form factors. Our analysis sh…