Fast microwave-driven two-qubit gates between fluxonium qubits with a transmon couplerRemoveSiddharth Singh, Eugene Y. Huang, Jinlun Hu, Figen Yilmaz, Martijn F. S. Zwanenburg, Piranavan Kumaravadivel, Siyu Wang, Taryn V. Stefanski, and Christian Kraglund AndersenPhys. Rev. Applied 25, 024020 (2026)