We introduce E91 quantum key distribution scheme, which is based on EPR pair.
首先介绍了基于EPR对的E91量子密钥分发方案。
Quantum bit rate is an important operating parameter in quantum key distribution.
在量子密钥分配中，量子比特率是一个重要的系统参数。
Quantum bit error rate is an important operating parameter in quantum key distribution.
量子误码率是量子密钥分配系统的重要参数之一。
In previous quantum key distribution protocols a auxiliary classical channel is needed.
通常的量子密钥分配协议都需要一个辅助的经典信道来生成量子密钥。
A new quantum key distribution protocol that differs from the BB84 protocol is analysised.
讨论了一个不同于BB 84协议的量子密匙传输协议的安全性。
Entangled photon pairs are the critical resources in quantum key distribution (QKD) system.
纠缠光子源对于量子密钥分发系统至关重要。
But fibre-optic quantum key distribution networks already exist in Europe, the US and China.
但是欧洲、美国和中国已经存在有光纤量子秘钥分发网络了。
The quantum key distribution of BB84 protocol is simulated on the computer at the end of the paper.
最后用BB 84协议对量子密钥生成与分发进行了程序模拟。
So it is important to analyze the effect of turbulent atmosphere channel on quantum key distribution systems.
因此研究湍流大气信道对量子密钥分布系统性能的影响就非常重要。
Such a system can be used as the source of quantum key distribution system with a bit error rate less than 6%.
这样的一个纠缠光子源可以运用到量子密钥分发系统中，所产生的误码率可小于6%。
Theoretical model of single photon acquisition probability is established for free-space quantum key distribution.
建立了一种自由空间量子密钥分配的单光子捕获概率理论模型。
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。
It is shown that there is still an asymptotic perfect security of quantum key distribution under this attack strategy.
理论计算证明了量子密钥分配协议在这种攻击策略下仍具有足够的安全性。
An efficient quantum signature protocol of classical messages which was based on quantum one-time pad and quantum key distribution was presented.
基于量子一次一密和量子密钥分配，提出了一种针对经典消息的高效量子签名协议。
As rapid progress in theory and experiment of quantum cryptography, point-to-point quantum key distribution (QKD) systems are already commercial available.
随着量子密码学在理论和实验上的飞速进展，点对点的量子密钥分发系统已经可以商用。
Quantum communication is an important branch of quantum information, embracing quantum teleportation, quantum dense coding, quantum key distribution and so on.
量子通信是量子信息学的一个重要分支，主要包括量子隐形传态、量子稠密编码、量子秘钥分配等。
Quantum key distribution(QKD) network can be differentiated into three main categories based on different "family" of node functionalities:1)trusted relay node;
根据量子密钥分发网络节点功能的不同，可以将其分为三类：由信任方节点构成的网络；
Analysis indicates the importance of precise temperature control of single-photon detector used for quantum key distribution in infrared communication wavelengths.
分析了在红外通信波段对量子密钥分配的关键器件单光子探测器进行精密温度控制的必要性。
Currently, quantum cryptography communication is mainly used in quantum key distribution. There are a number of systems and products about quantum key distribution.
目前，量子密码通信主要应用在密钥分配方面，国际上已经开发出了一些量子密钥分配方面的系统和产品。
We present a quantum key distribution system based on two polarization beam splitters, by means of which the phase modulator's polarization dependence is cancelled out.
提出了利用两个偏振分束器的量子密钥分发系统，有效地解决了相位调制器的偏振依赖性问题。
Quantum key distribution technique is a popular research subject in information security field, which is based on Heisenberg's uncertainty principle and no-clone theory.
量子密钥分配技术是信息安全中最热门的研究课题，它起源于量子力学中的测不准原理和未知量子态的不可克隆定理。
Highly attenuated laser pulses with Poisson distribution are used as single-photon sources and the BB84 and B92 protocols are used for free-space quantum key distribution.
在自由空间量子密钥分配中，单光子源采用具有泊松分布的高度衰减激光脉冲，量子密码术协议采用BB 84和B92协议。
Methods to express the preparation and measurement of quantum states on current computer and the basic algorithms for simulating the quantum key distribution protocols were given.
给出了在经典计算机上表示量子态的制备和测量方法，并编制相应的程序，实现了多种量子密钥分配协议仿真。
In this paper, by analogy to the classic communication model, and by employing notion of the measurement channel, a communication model for quantum key distribution is constructed.
本文通过引入量子测量信道的概念，并参照经典通信模型，首次为量子密钥分配建立了通信模型。
Quantum communication is a very important branch of quantum information. At present, it mainly contains quantum teleportation, quantum dense coding, quantum key distribution, and so on.
量子通信是量子信息学的一个非常重要的分支，目前主要涉及到量子隐形传态、量子密集编码、量子密钥分配等。
We discussed the interaction between a photon and the atmosphere, and simulated the quantum key distribution protocol between atmospheric channels using the quantum computation language.
讨论了光子与大气的相互作用，利用量子计算语言对大气信道中的量子密钥分配进行了仿真。
Due to the limit of response speed of the present single-photon detector, the code rate is still too low to come into practical use for the present quantum key distribution (QKD) system.
由于单光子探测器响应速率的限制，目前的量子密钥分配系统的码率很低，限制了它的实际应用。
In this thesis, the author proposes a theoretically efficient high-capacity quantum key distribution scheme and generalizes the quantum dense coding to super dense coding between multiparty.
本论文给出了一种高效率、高信容的量子密钥分布模型，同时将量子密集编码推广到一般的多方高维的情况。
Firstly, based on the analysis of some implementations of BB84 protocol, we developed a scheme of quantum key distribution by using polarization encoding and only one single photon detector.
首先，在研究BB 84协议各种具体实现方法的基础上，提出了一种基于偏振编码的量子密钥分发方案，该方案仅使用一台单光子探测器。
Firstly, based on the analysis of some implementations of BB84 protocol, we developed a scheme of quantum key distribution by using polarization encoding and only one single photon detector.
首先，在研究BB 84协议各种具体实现方法的基础上，提出了一种基于偏振编码的量子密钥分发方案，该方案仅使用一台单光子探测器。
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