Laser & Optoelectronics Progress, Volume. 57, Issue 17, 172703(2020)
Quantum Key Agreement Protocols Immune to Collective Noise
Recently, how to eliminate the influence of collective noise in quantum communication has become an urgent problem. To solve the problem of low qubit efficiency of the current quantum key agreement protocols under collective noise, we propose two improved quantum key agreement protocols immune to collective phase noise and collective rotation noise, respectively. These two protocols mainly make use of the correlation among logical quantum states, delay measurement technology, unitary operation, and multi-particle entangled states to ensure that the communication parties can fairly establish a shared key. The qubit efficiency of the protocols is up to 27.27%, which effectively improves the existing quantum key agreement protocols immune to collective noise.
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Jie Tang, Lei Shi, Jiahua Wei, Huicun Yu, Tianxiong Wu, Yang Xue. Quantum Key Agreement Protocols Immune to Collective Noise[J]. Laser & Optoelectronics Progress, 2020, 57(17): 172703
Category: Quantum Optics
Received: Dec. 4, 2019
Accepted: Jan. 14, 2020
Published Online: Sep. 1, 2020
The Author Email: Shi Lei (slfly2012@163.com), Wei Jiahua (weijiahua@126.com), Yu Huicun (yhc9426@163.com)