Verifiable Measurement-Only Blind Quantum Computing with Stabilizer Testing

被引:148
作者
Hayashi, Masahito [1 ,2 ]
Morimae, Tomoyuki [3 ]
机构
[1] Nagoya Univ, Grad Sch Math, Chikusa Ku, Nagoya, Aichi 464860, Japan
[2] Natl Univ Singapore, Ctr Quantum Technol, Singapore 117543, Singapore
[3] Gunma Univ, ASRLD Unit, Kiryu, Gunma 3760052, Japan
基金
新加坡国家研究基金会;
关键词
Graph state - Measurement-based - Quantum Computing - Qubit state - SIMPLE protocol - Single qubits;
D O I
10.1103/PhysRevLett.115.220502
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We introduce a simple protocol for verifiable measurement-only blind quantum computing. Alice, a client, can perform only single-qubit measurements, whereas Bob, a server, can generate and store entangled many-qubit states. Bob generates copies of a graph state, which is a universal resource state for measurement-based quantum computing, and sends Alice each qubit of them one by one. Alice adaptively measures each qubit according to her program. If Bob is honest, he generates the correct graph state, and, therefore, Alice can obtain the correct computation result. Regarding the security, whatever Bob does, Bob cannot get any information about Alice's computation because of the no-signaling principle. Furthermore, malicious Bob does not necessarily send the copies of the correct graph state, but Alice can check the correctness of Bob's state by directly verifying the stabilizers of some copies.
引用
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页数:5
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