| Autor: |
Gong, Ming, Chen, Ming-Cheng, Zheng, Yarui, Wang, Shiyu, Zha, Chen, Deng, Hui, Yan, Zhiguang, Rong, Hao, Wu, Yulin, Li, Shaowei, Chen, Fusheng, Zhao, Youwei, Liang, Futian, Lin, Jin, Xu, Yu, Guo, Cheng, Sun, Lihua, Castellano, Anthony D., Wang, Haohua, Peng, Chengzhi, Lu, Chao-Yang, Zhu, Xiaobo, Pan, Jian-Wei |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Phys. Rev. Lett. 122, 110501 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.122.110501 |
| Popis: |
We report the preparation and verification of a genuine 12-qubit entanglement in a superconducting processor. The processor that we designed and fabricated has qubits lying on a 1D chain with relaxation times ranging from 29.6 to 54.6 $\mu$s. The fidelity of the 12-qubit entanglement was measured to be above $0.5544\pm0.0025$, exceeding the genuine multipartite entanglement threshold by 21 statistical standard deviations. Our entangling circuit to generate linear cluster states is depth-invariant in the number of qubits and uses single- and double-qubit gates instead of collective interactions. Our results are a substantial step towards large-scale random circuit sampling and scalable measurement-based quantum computing. |
| Databáze: |
arXiv |
| Externí odkaz: |
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