三维谐振腔中的可调传输子量子比特
unable Transmon in a 3D cavity
研究了两种不同结构的可调三维传输子量子比特：一个主要是由直流超导量子干涉器件构成,另一个主要是由三个约瑟夫森结组成的超导回路构成。由直流超导量子干涉器件构成的传输子量子比特,其跃迁频率可调范围达$sim3.7$~GHz,并观察到$sim360$~MHz大小的真空拉比分裂。在由三个约瑟夫森结组成的超导回路构成的传输子量子比特体系中,通过添加另外两个单个约瑟夫森结构成的传输子量子比特,观察到了量子比特之间耦合形成的免交叉,大小$sim440$~MHz。
We present two 3D copper cavity systems with tunable transmons but different structures. The first one is a transmon with a dc-SQUID, which shows a transition frequency tunability of $sim3.7$~GHz and a vacuum Rabi splitting of $sim360$~MHz. The other one is a transmon with three junctions in a superconducting loop, in which an avoided crossing of $sim440$~MHz is apparently observed by adding another two single-junction transmons.
范云益、许伟伟、李永超、吴培亨、孙国柱、陈健、康琳、潘佳政、周渝、陈志平、于海峰、兰栋、于扬、曹志敏、曹春海
电工基础理论物理学
无线电物理超导量子比特三维谐振腔可调传输子量子比特
Radio Physics Superconducting Quantum Bit 3D Cavity Tunable Transmon
范云益,许伟伟,李永超,吴培亨,孙国柱,陈健,康琳,潘佳政,周渝,陈志平,于海峰,兰栋,于扬,曹志敏,曹春海.三维谐振腔中的可调传输子量子比特[EB/OL].(2016-06-15)[2025-08-16].http://www.paper.edu.cn/releasepaper/content/201606-686.点此复制
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