10-Qubit Entanglement and Parallel Logic Operations with a Superconducting Circuit

作者：Chao Song, Kai Xu, Wuxin Liu, Chui‐Ping Yang, Shi‐Biao Zheng, Huiqiu Deng, Qiwei Xie, Keqiang Huang, Qiujiang Guo, Libo Zhang, Pengfei Zhang, Da Xu, Dongning Zheng, Xiaobo Zhu, H. Wang, Yi‐An Chen, Chao‐Yang Lu, Siyuan Han, Jian-Wei Pan · 发表于：Physical Review Letters · 年份：2017 · DOI：10.1103/physrevlett.119.180511 · 被引用次数：464 · 研究领域：Quantum Information and Cryptography、Quantum Computing Algorithms and Architecture、Quantum and electron transport phenomena

Here we report on the production and tomography of genuinely entangled Greenberger-Horne-Zeilinger states with up to ten qubits connecting to a bus resonator in a superconducting circuit, where the resonator-mediated qubit-qubit interactions are used to controllably entangle multiple qubits and to operate on different pairs of qubits in parallel. The resulting 10-qubit density matrix is probed by quantum state tomography, with a fidelity of 0.668±0.025. Our results demonstrate the largest entanglement created so far in solid-state architectures and pave the way to large-scale quantum computation.