第三章：详细讨论了基于相位调制偏振编码的量子保密通信系统。
Chapter3: This chapter discusses the quantum cryptography system based on phase modulation polarization coding technology in details.
论文对量子信息中的量子保密通信系统及量子逻辑门进行了研究。
This thesis mainly focuses on investigation on the quantum cryptography communication system and quantum logic gates.
量子保密通信系统以量子力学中的基本定理为基石，可以提供绝对的信息安全。
Quantum cryptography communication system is based on principles of quantum mechanics, thereby it can provide absolute security of information.
与经典保密通信不同的是，量子密码学不是基于大数分解的复杂性，而是基于量子力学的原理。同时，量子密码也是不依赖于计算机系统的计算能力的。
Rather than depending on the complexity of factoring large numbers, quantum cryptography is based on the rules of physics and is also independent of the processing power of computing systems.
与经典保密通信不同的是，量子密码学不是基于大数分解的复杂性，而是基于量子力学的原理。同时，量子密码也是不依赖于计算机系统的计算能力的。
Rather than depending on the complexity of factoring large numbers, quantum cryptography is based on the rules of physics and is also independent of the processing power of computing systems.
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