The quantum key distribution (QKD) using the QEAC will be robust in the quantum noisy channel without complex system.

将量子避错码思想用于量子密钥分发，能有效克服信道中的噪声，且无需复杂的系统。

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Compared with the recent QKD scheme based on four-photon QEAC, the qubit efficiency of the authors' scheme increases by 16.67%, and the security is 3.5 times of it.

与最近的基于四光子避错码的克服量子信道噪声的量子密钥分发方案相比，该方案的量子比特效率提高了16.67%，密钥分发安全性是它的3.5倍。

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