Strongly correlated quantum walks with a 12-qubit superconducting processor

Author:

Yan Zhiguang12ORCID,Zhang Yu-Ran345ORCID,Gong Ming12ORCID,Wu Yulin12ORCID,Zheng Yarui12ORCID,Li Shaowei12,Wang Can12,Liang Futian12ORCID,Lin Jin12,Xu Yu12ORCID,Guo Cheng12ORCID,Sun Lihua12ORCID,Peng Cheng-Zhi12ORCID,Xia Keyu467ORCID,Deng Hui12,Rong Hao12ORCID,You J. Q.38ORCID,Nori Franco49ORCID,Fan Heng510ORCID,Zhu Xiaobo12ORCID,Pan Jian-Wei12ORCID

Affiliation:

1. Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.

2. Shanghai Branch, CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China.

3. Beijing Computational Science Research Center, Beijing 100094, China.

4. Theoretical Quantum Physics Laboratory, RIKEN Cluster for Pioneering Research, Wako-shi, Saitama 351-0198, Japan.

5. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

6. National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, and School of Physics, Nanjing University, Nanjing 210093, China.

7. Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.

8. Department of Physics and State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou, Zhejiang 310027, China.

9. Physics Department, University of Michigan, Ann Arbor, MI 48109-1040, USA.

10. CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China.

Abstract

Quantum walks on a superconducting circuit Quantum walks generate large-scale quantum superposed states. This allows for classically unavailable applications, such as simulating many-body quantum systems, and also yields quantum algorithms exponentially faster than classical computation. Yan et al. demonstrate quantum walks of one and two strongly correlated microwave photons in a one-dimensional array of 12 superconducting qubits with short-range interactions. The scalability of the superconducting platform could lead to large-scale implementations and the quantum simulation of complex systems. Science , this issue p. 753

Funder

Air Force Office of Scientific Research

Army Research Office

Japan Society for the Promotion of Science

National Natural Science Foundation of China

Ministry of Science and Technology of the People's Republic of China

Japan Science and Technology Agency

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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