Xin Xuanxuan, He Shiwen, Li Yongxing, Li Chong
School of Physics, Dalian University of Technology, Dalian 116024, China.
Entropy (Basel). 2023 May 8;25(5):768. doi: 10.3390/e25050768.
In this paper, we have reinvestigated probabilistic quantum communication protocols and developed a nontraditional remote state preparation protocol that allows for deterministically transferring information encoded in quantum states using a non-maximally entangled channel. With an auxiliary particle and a simple measurement method, the success probability of preparing a d-dimensional quantum state is increased to 1 without spending additional quantum resources in advance to improve quantum channels, such as entanglement purification. Furthermore, we have designed a feasible experimental scheme to demonstrate the deterministic paradigm of transporting a polarization-encoded photon from one location to another using a generalized entangled state. This approach provides a practical method to address decoherence and environmental noises in actual quantum communication.
在本文中，我们重新研究了概率量子通信协议，并开发了一种非传统的远程态制备协议，该协议允许使用非最大纠缠信道确定性地传输编码在量子态中的信息。借助一个辅助粒子和一种简单的测量方法，制备一个d维量子态的成功概率提高到了1，而无需预先花费额外的量子资源来改善量子信道，如纠缠纯化。此外，我们设计了一个可行的实验方案，以证明使用广义纠缠态将偏振编码光子从一个位置传输到另一个位置的确定性范式。这种方法为解决实际量子通信中的退相干和环境噪声提供了一种实用方法。
