Author(s): Haochuan Yin, Yuchen Li, Ze Wu, Liqiang Zhao, Shengyu Zhang, Pai Peng, Riqiang Fu, Dieter Suter, and Xinhua Peng Characterizing the unknown Hamiltonian of a quantum many-body system is essential for exploring fundamental physical phenomena and advancing frontier quantum technologies. However, the complexity of many-body interactions and limited control capabilities in realistic experimental systems render this… [Phys. Rev. Lett. 137, 170402] Published Wed Oct 21, 2026