Benchmarking a Tunable Quantum Neural Network on Trapped-Ion and Superconducting HardwareRemoveDjamil Lakhdar-Hamina, Xingxin Liu, Richard Barney, Sarah H. Miller, Alaina M. Green, Norbert M. Linke, and Victor GalitskiPhys. Rev. Lett. 137, 040601 (2026)