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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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Watabe, S., Serikow, M. Z., Kawabata, S., & Zagoskin, A. M. (2023) · The European Physical Journal Special Topics · doi:10.1140/epjs/s11734-023-01008-y · Cited by 1
Decoherence in the Three-State Quantum WalkPreprint
de Oliveira, M. C., & Tude, L. T. (2022) · SSRN Electronic Journal · doi:10.2139/ssrn.4080624 · Cited by 1
Classifying quantum circuits with qubit functional configurations.Preprint
Hu, Z., & Kais, S. (2021) · arXiv (Cornell University)
Munro, W. J. (2021) · NTT technical review · doi:10.53829/ntr202110fr1
Self-citationNative Conditional $i$SWAP Operation with Superconducting Artificial AtomsPreprint
Hu, C.-K., Yuan, J., Veloso, B. A., Qiu, J., Zhou, Y., Zhang, L., Chu, J., Nurbolat, O., Hu, L., Li, J., et al. (2022) · arXiv (Cornell University) · doi:10.48550/arxiv.2203.09791 · Cited by 1
Self-citationResponse to glassy disorder in coin on spread of quantum walker
Ghosh, P., Sen, K., & Sen, U. (2026) · Physics Letters A · doi:10.1016/j.physleta.2026.131623 · Cited by 1
Ground-state chiral currents in the synthetic Hall tube
Guan, X., Chen, G., Pan, J., You, X.-F., & Gui, Z.-G. (2022) · Acta Physica Sinica · doi:10.7498/aps.71.20220293
Self-citationWojcieszyn, F. (2022) · Quantum science and technology · doi:10.1007/978-3-030-99379-5_1
Strolling through a NISQ processor
Munro, W. J., Gong, M., Wang, S., Zha, C., Chen, M.-C., Huang, H.-L., Wu, Y., Zhu, Q., Zhao, Y., Li, S., et al. (2022) · Quantum 2.0 Conference and Exhibition · doi:10.1364/quantum.2022.qm4a.4
Self-citationIntegrated Superconducting Isolator-Circulator-Isolator Device
Huang, R., Dai, G., Liu, J., & Chen, W. (2022) · China Semiconductor Technology International Conference (CSTIC) · doi:10.1109/cstic55103.2022.9856890
“INTRODUCTION In superconducting quantum systems, there are a series of devices such as filters, isolators, circulators and quantum noise limited amplifier that are used to readout quantum information [1,2].”
BackgroundStrolling through a NISQ processor
Munro, W. J., Gong, M., Wang, S., Zha, C., Chen, M.-C., Huang, H.-L., Wu, Y., Zhu, Q., Zhao, Y., Li, S., et al. (2022) · Conference on Lasers and Electro-Optics · doi:10.1364/cleo_qels.2022.ff2i.1
Self-citationUnsupervised generalization of correlated quantum dynamics on disordered lattices
Kenig, M., & Lahini, Y. (2023) · Physical Review A · doi:10.1103/physreva.107.012430 · Cited by 1
Research Progress of Reverse Monte Carlo and Its Application in Josephson Junction Barrier Layer
Qiu, J., Sun, H., & Wang, S. (2023) · Computer Modeling in Engineering & Sciences · doi:10.32604/cmes.2023.027353
Self-citationAn On-Chip Superconducting Quantum Transponder
Huang, R., Wu, X., Geng, X., Liu, J., & Chen, W. (2023) · China Semiconductor Technology International Conference (CSTIC) · doi:10.1109/cstic58779.2023.10219407
“However, when transmitting signals in the superconducting quantum test system, the input and output ports cannot be isolated, which will inevitably lead to the interference between input and output information [3][4].”
BackgroundDesign and fabrication of cryogenic multiplexing control chip
Huang, R., Shi, Y., Geng, X., Yang, L., Liu, J., & Chen, W. (2023) · Frontiers in Physics · doi:10.3389/fphy.2023.1212642
Cooperative Bound States in Quantum Walks Of Interacting ParticlesPreprint
Dias, W. S., de Moura, F. A. B. F., Oliveira, M. F. V., Junior, M. S. S., & Bertoldo-Coêlho, M. (2023) · SSRN Electronic Journal · doi:10.2139/ssrn.4673264
Engineering Philosophy of Quantum Artificial Intelligence
Cheng, P., & Tan, H. (2021) · JOURNAL OF ENGINEERING STUDIES · doi:10.3724/sp.j.1224.2021.00479
Spin-orbit photonic circuits for quantum simulations
Colandrea, F. D., Babazadeh, A., Dauphin, A., Massignan, P., Marrucci, L., & Cardano, F. (2024) · Quantum Computing, Communication, and Simulation · doi:10.1117/12.2691444
“In the past decades, QWs have been employed in the context of topological physics [2], transport phenomena [3] and quantum computation [4].”
MethodSimulations of superconducting quantum gates by digital flux tuner for qubits
Geng, X., He, K., Liu, J., & 陈, W. 炜. C. (2024) · Chinese Physics B · doi:10.1088/1674-1056/ad47ab
Spatial entanglement between two quantum walkers with exchange symmetric coins
Muhammad, I. Y., Deesuwan, T., Yoo-Kong, S., Tangwancharoen, S., & Танаситтикосол, М. (2024) · Physics Letters A · doi:10.1016/j.physleta.2024.129758
“It is shown in [2–6] that quantum walk can implement universal quantum computation and some important quantum computing/communication tasks [7–12].”
Background
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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