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quant-ph2026
Extensible Fluxonium Architecture Using Tunable Couplers with Low Shunt Capacitance
Peng Zhao, Peng Xu, Zheng-Yuan Xue
Fluxonium qubits have demonstrated high-fidelity operations and long coherence times in small-scale systems, highlighting their promise for quantum computing. However, large-scale…
quant-ph2026
Fast CZ Gate via Energy-Level Engineering in Superconducting Qubits with a Tunable Coupler
Benzheng Yuan, Chaojie Zhang, Chuanbing Han +8
In superconducting quantum circuits, decoherence errors in qubits constitute a critical factor limiting quantum gate performance. To mitigate decoherence-induced gate infidelity, r…