Private and quantum capacities of more capable and less noisy quantum channels
Private and quantum capacities of more capable and less noisy quantum channels
复制标题
DOI：
10.1103/physreva.85.012326
复制
发表时间：
2011-10
影响因子：
2.9
通讯作者：
Shun Watanabe
中科院分区：
文献类型：
--
作者：
Shun Watanabe
引入了两类新的量子通道，我们称之为能力更强且噪声更少。能力更强的类别由通道组成，使得环境的互补通道的量子容量为零。噪声较小的类别由通道组成，使得环境的互补通道的专用容量为零。对于能力较高的阶层，明确私人能力和量子能力是一致的。对于噪音较小的类别，明确了私有容量和量子容量可以用单字母表征。
Two new classes of quantum channels, which we call more capable and less noisy, are introduced. The more capable class consists of channels such that the quantum capacities of the complementary channels to the environments are zero. The less noisy class consists of channels such that the private capacities of the complementary channels to the environment are zero. For the more capable class, it is clarified that the private capacity and quantum capacity coincide. For the less noisy class, it is clarified that the private capacity and quantum capacity can be single letter characterized.