CCZ three-qubit gate

97.94% fidelity

Directly implemented via tunable couplers without decomposition into single- and two-qubit gates, reducing circuit depth and improving performance.

Hao-Tian, Liu · Bingjie, Chen · Jia-Chi, Zhang · Yong-Xi, Xiao · Tian-Ming, Li · Huang, Kaixuan · Wang, Ziting · Li, Hao · Kui, Zhao · Xu, Yueshan · Cheng-Lin, Deng · Gui-Han, Liang · Zheng-He, Liu · Si-Yun, Zhou · Cai-Ping, Fang · Song, Xiaohui · Xiang, Zhongcheng · Zheng, Dongning · Shi, Yun · Xu, Kai · Fan, Heng

Physical Review Letters 2025

Specifications

平均末态保真度
{'zh': '97.94', 'en': ''} %
过程保真度
{'zh': '93.54', 'en': ''} %

Advantages

Lower leakage compared to decomposed gates