A Coding and Automatic Error-Correction Circuit Based on the Five-Particle Entangled State
Xi, Chen, Pei Pei, Zhang, Xiaoqing, Zhou Zhou · Acta Scientiarum Naturalium Universitatis Sunyatseni · 2013
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.