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提出了一种新型的量子信息编码和解码新方法,并用全量子力学方法,对这种量子信息编码技术进行了系统的理论分析.根据态叠加原理,可以用两个正交的偏振态,通过偏振干涉方法合成一个新的偏振态.这个合成的偏振态由两个正交偏振态的相位差决定.改变相位差,就可以合成各种不同的偏振态.而相位差的改变可以通过相位调制器来实现,从而可以用相位调制方法,实现对光子偏振态的编码和解码.这种方法可以随机地制备各种非正交偏振态,也可以随机地产生各种非正交偏振态测量基,对各种非正交偏振态的光子进行检测和解码.这种编码方法既具有相位编码方法传输距离大的优点,同时又克服了该方法信息损失过半的缺点,还可以对光子的位相和偏振态进行精确补偿,有效地降低误码率.
A new quantum information coding and decoding method is proposed, and the quantum information coding technique is systematically and theoretically analyzed by full quantum mechanics.According to the state superposition principle, two orthogonal states of polarization Polarization interference method to synthesize a new polarization state. The polarization state of this synthesis is determined by the phase difference between two orthogonal polarization states. By changing the phase difference, different polarization states can be synthesized, while the phase difference can be changed by phase modulation So that the phase modulation can be used to realize the encoding and decoding of the photon polarization states, which can randomly generate various non-orthogonal polarization states and randomly generate various non-orthogonal polarization state measurement bases , Which detects and decodes all kinds of non-orthogonal polarizations of photons.The encoding method not only has the advantages of large transmission distance of phase encoding method, but also overcomes the shortcomings of more than half of the information loss of the method, but also the phase and Precise polarization state compensation, effectively reducing the bit error rate.