ZTE Communications ›› 2013, Vol. 11 ›› Issue (3): 41-45.DOI: DOI:10.3969/j.issn.1673-5188.2013.03.007

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A Coding and Automatic Error-Correction Circuit Based on the Five-Particle Entangled State

Xi Chen, Pei Zhang, and Xiaoqing Zhou   

  1. College of Physics and Mechatronics Engineering, Jishou University, Jishou 416000, China
  • Received:2013-08-08 Online:2013-09-25 Published:2013-09-25
  • About author:Xi Chen (jidanjtwl@163.com) received his BSc degree in physics from Luoyang College, China, in 2010. He received his MSc degree in condensed matter physics from Jishou University, China, in 2013. His research interests include quantum error correction.

    Pei Zhang (290047141@qq.com) graduated from the Faculty of Physics, Taiyuan University, China, in 2011. He is a postgraduate at Jishou University, China. His main research interest is quantum teleportation.

    Xiaoqing Zhou (zhouxq_jd@163.com) is a professor at the College of Physics Science and Information Engineering, Jishou University, China. He previously studied at Hunan Education College, Tsinghua University, and Central South University. Dr. Zhou graduated from the Faculty of Physics, Jishou University, in 1981. He is a postgraduate tutor, and his main research interest is quantum information.

A Coding and Automatic Error-Correction Circuit Based on the Five-Particle Entangled State

Xi Chen, Pei Zhang, and Xiaoqing Zhou   

  1. College of Physics and Mechatronics Engineering, Jishou University, Jishou 416000, China
  • 作者简介:Xi Chen (jidanjtwl@163.com) received his BSc degree in physics from Luoyang College, China, in 2010. He received his MSc degree in condensed matter physics from Jishou University, China, in 2013. His research interests include quantum error correction.

    Pei Zhang (290047141@qq.com) graduated from the Faculty of Physics, Taiyuan University, China, in 2011. He is a postgraduate at Jishou University, China. His main research interest is quantum teleportation.

    Xiaoqing Zhou (zhouxq_jd@163.com) is a professor at the College of Physics Science and Information Engineering, Jishou University, China. He previously studied at Hunan Education College, Tsinghua University, and Central South University. Dr. Zhou graduated from the Faculty of Physics, Jishou University, in 1981. He is a postgraduate tutor, and his main research interest is quantum information.

Abstract: In this paper, we discuss the concepts of quantum coding and error correction for a five-particle entangled state. Error correction can correct bit-reverse or phase-flip errors of one and two quantum states and is no longer limited to only one quantum state. We encode a single quantum state into a five-particle entangled state before being transferred to the sender. We designed an automatic error-correction circuit to correct errors caused by noise. We also simplify the design process for a multiple quantum error-correction circuit. We compare error-correction schemes for five and three entangled particles in terms of efficiency and capabilities. The results show that error-correction efficiency and fidelity are improved.

Key words: quantum communication, channel coding, five-particle entangled state, fidelity

摘要: In this paper, we discuss the concepts of quantum coding and error correction for a five-particle entangled state. Error correction can correct bit-reverse or phase-flip errors of one and two quantum states and is no longer limited to only one quantum state. We encode a single quantum state into a five-particle entangled state before being transferred to the sender. We designed an automatic error-correction circuit to correct errors caused by noise. We also simplify the design process for a multiple quantum error-correction circuit. We compare error-correction schemes for five and three entangled particles in terms of efficiency and capabilities. The results show that error-correction efficiency and fidelity are improved.

关键词: quantum communication, channel coding, five-particle entangled state, fidelity