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Quantum walks on a programmable two-dimensional 62-qubit superconducting processor
Open accessAbstract
Simulating quantum walkers: Quantum walks are the quantum mechanical analogs of classical random walks, describing the propagation of a quantum walker across a lattice, and find application in developing algorithms for simulating quantum many-body systems. Gong et al. used an 8-by-8 two-dimensional (2D) superconducting qubit square lattice containing 62 functional qubits to show how multiple (two) walkers traverse a 2D qubit array, interfering as they go. The authors were also able to program the paths that the walkers follow, demonstrating a Mach-Zehnder interferometer in which a single or multiple quantum walkers coherently traverse two paths before interfering and exiting at a single port. The results illustrate the potential for superconducting-based quantum processors in simulating large-scale quantum systems. Science , abg7812, this issue p. 948
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“Recent works reported 2D continuous-time quantum walks of correlated photons, relying on arrays of coupled waveguides 21,38,52 , and important results have been also achieved by means of superconductive quantum processors 6 .”
From Quantum walks of two correlated photons in a 2D synthetic lattice (2022) · cites this paper as [6]
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Self-citationThe potential and global outlook of integrated photonics for quantum technologies
Pelucchi, E., Fagas, G., Aharonovich, I., Englund, D. R., Figueroa, E. V., Gong, Q., Hübel, H., Liu, J., Lu, C., Matsuda, N., et al. (2021) · Nature Reviews Physics · doi:10.1038/s42254-021-00398-z · Cited by 568
Self-citationThe Evolution of Quantum Key Distribution Networks: On the Road to the Qinternet
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Quantum computational advantage via 60-qubit 24-cycle random circuit sampling
Zhu, Q., Cao, S., Chen, F., Chen, M.-C., Chen, X., Chung, T.-H., Deng, H., Du, Y., Fan, D., Gong, M., et al. (2022) · Science Bulletin · doi:10.1016/j.scib.2021.10.017 · Cited by 263
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Metadata
- Authors
- Gong, M., Wang, S., Zha, C., Chen, M.-C., Huang, H.-L., Wu, Y., Zhu, Q., Zhao, Y., Li, S., Guo, S., Qian, H., Ye, Y., Chen, F., Ying, C., Yu, J., Fan, D., Wu, D., Su, H., Deng, H., Rong, H., Zhang, K., Cao, S., Lin, J., Xu, Y., Sun, L., Guo, C., Li, N., Liang, F., Bastidas, V. M., Nemoto, K., Munro, W. J., Huo, Y.-H., Lu, C.-Y., Peng, C.-Z., Zhu, X., & Pan, J.-W.
- Affiliations
- University of Science and Technology of China (CN)
- NTT (Japan) (JP)
- National Institute of Informatics (JP)
- Corresponding author
- Gong, Ming
- Wang, Shiyu
- Zha, Chen
- Zhu, Xiaobo
- Pan, Jian-Wei
- ORCID
- Venue
- Science
- Published
- 2021-05-28
- Volume
- 372
- Issue
- 6545
- Pages
- 948-952
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W3127536809
- Cited by
- 331
- References
- 26
- Citations by year
- 2026: 25 · 2025: 41 · 2024: 60 · 2023: 82 · 2022: 90 · 2021: 33
- FWCI
- 23.42
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Funders
- Natural Science Foundation of Shanghai (19ZR1462700)
- National Key Research and Development Program of China Stem Cell and Translational Research (2017YFA0304300)
- National Science Foundation of China (11905217, 11774326)
- Anhui Initiative in Quantum Information Technologies
- Shanghai Municipal Science and Technology Major Project (2019SHZDZX01)
- Key-Area Research and Development Program of Guangdong Provice (2020B0303030001)
- Japanese MEXT Quantum Leap Flagship Program (JPMXS0118069605)
- Technology Committee of Shanghai Municipality
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Computing Algorithms and Architecture
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Keywords
- quantum walks, superconducting qubit arrays, programmable quantum processors, Mach-Zehnder interferometer, two-particle quantum walk, interference fringes, disorder tuning, quantum simulation, noisy intermediate-scale quantum computing
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