| 1. | We study information capacities of quantum channels with special emphasis on quantum gaussion channels
量子信道特别是量子高斯信道容量具有重要的信息论意义。 |
| 2. | In this scheme , a three - particle entangled state is used as quantum channel to teleport a two - qubit atomic state
在此方案中，用一个三粒子纠缠态作为量子信道，传送两比特未知原子态。 |
| 3. | In quantum system , noise primary results from decoherence and imperfect quantum gates . the code that combat noise is named quantum channel coding
在量子系统中，信道噪声主要源于消相干效应和量子门的不精确性。 |
| 4. | This paper presented a scheme to probabilistically teleport an arbitrary and unknown three - particle entangled state via three pairs non - maximally entangled states as the quantum channel
摘要提出了一种任意未知三粒子纠缠态通过三对部分纠缠态作为通道的概率传递方案。 |
| 5. | The models of unconditional security from quantum channels and noisy channels are two typical methods now . two parties begin the secret - key agreement over a public channel
目前最典型的方法是利用有扰信道或量子信道建立无条件安全模型，通信双方在公共信道上进行密钥协商。 |
| 6. | Both quantum error correcting code and quantum error avoiding code are practical quantum channel coding schemes . we present in this dissertation a new quantum error correcting code scheme , named serially concatenated quantum convolutional code
克服量子信道噪声的编码就称为量子信道编码，实用的量子信道编码包括量子纠错码和量子避错码。 |
| 7. | In chapter we give out an explicit expression of classical capacity of general fermi quantum channel for single mode fermion system under the restriction of input average occupation numbers of fermions ( that is the input power restriction )
第二章给出了输入费米子平均占据数限定(平均输入功率限定)的条件下的单模费米系统量子信道的经典容量。 |
| 8. | Chapter3 : based on quantum channel lossy in practical qkd > we propose and devise to quantum eavesdropping system . the research shows that breidbart eavesdropping / beamsplitter is the more effective one breidbart eavesdropping / breidbart ( b / b strategy )
研究表明，在实际qkd系统中得出了breidbart基分束攻击相结合的方法是比截取重发策略和分束攻击更为有效的窃听方案。 |
| 9. | In this thesis , quantum entropy theories are applied to study quantum entanglement and other problems : quantum channel ? two - particle teleportation and its interpretation in terms of entropy ? quantum information squeezing of atom and so on in quantum systems
本文运用量子熵理论着重研究了量子系统中的纠缠，此外还探讨了量子力学通道、二粒子隐形传态的熵描述及原子信息熵压缩等问题。 |
| 10. | Based on the operator - sum representation of quantum channel , the quantum channel of single mode fermi system is parameterized . the maximum value of the amount of quantum mutual information , that is . the capacity of the channel aided by entanglement is given
基于量子信道的算符求和表示，将单模费米系统量子信道参数化，给出了量子互信息量的最大值，也就是在纠缠辅助下的经典容量的计算方法。 |
