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arXiv · 1703.10302

10-qubit entanglement and parallel logic operations with a superconducting circuit

Chao Song·Kai Xu·Wuxin Liu·Chuiping Yang·Shi-Biao Zheng·Hui Deng·Qiwei Xie·Keqiang Huang·Qiujiang Guo·Libo Zhang·Pengfei Zhang·Da Xu·Dongning Zheng·Xiaobo Zhu·H. Wang·Y. -A. Chen·C. -Y. Lu·Siyuan Han·J. -W. Pan
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Abstract

Here we report on the production and tomography of genuinely entangled Greenberger-Horne-Zeilinger states with up to 10 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 unambiguously probed, with a fidelity of $0.668 \pm 0.025$. Our results demonstrate the largest entanglement created so far in solid-state architectures, and pave the way to large-scale quantum computation.

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Chao Song, Kai Xu, Wuxin Liu, Chuiping Yang, Shi-Biao Zheng, Hui Deng, Qiwei Xie, Keqiang Huang, Qiujiang Guo, Libo Zhang, Pengfei Zhang, Da Xu, Dongning Zheng, Xiaobo Zhu, H. Wang, Y. -A. Chen, C. -Y. Lu, Siyuan Han, J. -W. Pan. 2017-11-05. 10-qubit entanglement and parallel logic operations with a superconducting circuit. https://doi.org/10.1103/physrevlett.119.180511

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