High-fidelity two-qubit gates are achieved with heavy-fluxonium qubits, circuits that break many conventional superconducting circuit paradigms, bringing more diversity for quantum applications.

From the article:

Tunable Inductive Coupler for High-Fidelity Gates Between Fluxonium Qubits
Helin Zhang, Chunyang Ding, D.K. Weiss, Ziwen Huang, Yuwei Ma, Charles Guinn, Sara Sussman, Sai Pavan Chitta, Danyang Chen, Andrew A. Houck, Jens Koch, and David I. Schuster
PRX Quantum 5, 020326 (2024)

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