计算量子互信息的最大化器
Calculating a maximizer for quantum mutual information
摘要：
我们得到了在量子比特振幅阻尼信道上发送经典信息的量子互信息的最大化。这是通过将输入状态的系综限制为对极状态来实现的，在计算信道的乘积状态容量时，所得到的最大化系综仅由两个非正交状态组成。我们还考虑了两个无记忆通道的凸组合的产品状态容量，并特别证明，它一般不是由各自的无记忆通道的容量的最小值。
英文摘要：
We obtain a maximizer for the quantum mutual information for classical information sent over the quantum qubit amplitude damping channel. This is achieved by limiting the ensemble of input states to antipodal states, in the calculation of the product-state capacity for the channel, the resulting maximizing ensemble consisting of just two non-orthogonal states. We also consider the product-state capacity of a convex combination of two memoryless channels and demonstrate in particular that it is in general not given by the minimum of the capacities of the respective memoryless channels.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
