Experimental cryptographic verification for near-term quantum cloud computing

Chen, Xi1,2,3,4; Cheng, Bin5,6,7,8; Li, Zhaokai1,2,3,4; Nie, Xinfang1,2,3,4; Yu, Nengkun9; Yung, Man-Hong5,6,7,8; Peng, Xinhua1,2,3,4

2021-01-15

10.1016/j.scib.2020.08.013

Science Bulletin   影响因子和分区

2095-9273

2095-9281

An important task for quantum cloud computing is to make sure that there is a real quantum computer running, instead of classical simulation. Here we explore the applicability of a cryptographic verification scheme for verifying quantum cloud computing. We provided a theoretical extension and implemented the scheme on a 5-qubit NMR quantum processor in the laboratory and a 5-qubit and 16-qubit processors of the IBM quantum cloud. We found that the experimental results of the NMR processor can be verified by the scheme with about 1.4% error, after noise compensation by standard techniques. However, the fidelity of the IBM quantum cloud is currently too low to pass the test (about 42% error). This verification scheme shall become practical when servers claim to offer quantum-computing resources that can achieve quantum supremacy. (C) 2020 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.

Quantum computation NMR quantum computing Verification Quantum cloud computing

EI ; SCI

英语

通讯

National Key Research and Development Program of China[2018YFA0306600] ; National Natural Science Foundation of China[11875160,"U1801661",11661161018,11927811] ; Anhui Initiative in Quantum Information Technologies[AHY050000] ; Australian Research Council[DE180100156] ; Natural Science Foundation of Guangdong Province[2017B030308003] ; Key R&D Program of Guangdong province[2018B030326001] ; Science, Technology and Innovation Commission of Shenzhen Municipality["JCYJ20170412152620376","JCYJ20170817105046702","KYTDPT20181011104202253"] ; Economy, Trade and Information Commission of Shenzhen Municipality[201901161512] ; Guangdong Provincial Key Laboratory[2019B121203002]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000608377500007

ELSEVIER

20203609131460

Cryptography ; Quantum computers ; Error compensation

Computer Systems and Equipment:722 ; Digital Computers and Systems:722.4

Web of Science

1.Univ Sci & Technol China USTC, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
2.Univ Sci & Technol China USTC, Dept Modern Phys, Hefei 230026, Peoples R China
3.USTC, CAS Key Lab Microscale Magnet Resonance, Hefei 230026, Peoples R China
4.USTC, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Peoples R China
5.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
6.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
7.Southern Univ Sci & Technol, Guangdong Prov Key Lab Quantum Sci & Engn, Shenzhen 518055, Peoples R China
8.Southern Univ Sci & Technol, Shenzhen Key Lab Quantum Sci & Engn, Shenzhen 518055, Peoples R China
9.Univ Technol Sydney, Fac Engn & Informat Technol, Ctr Quantum Software & Informat, Sch Software, Sydney, NSW 2007, Australia

Chen, Xi,Cheng, Bin,Li, Zhaokai,et al. Experimental cryptographic verification for near-term quantum cloud computing[J]. Science Bulletin,2021,66(1):23-28.

Chen, Xi.,Cheng, Bin.,Li, Zhaokai.,Nie, Xinfang.,Yu, Nengkun.,...&Peng, Xinhua.(2021).Experimental cryptographic verification for near-term quantum cloud computing.Science Bulletin,66(1),23-28.

Chen, Xi,et al."Experimental cryptographic verification for near-term quantum cloud computing".Science Bulletin 66.1(2021):23-28.