论文标题
玻色峰高斯频道的私人能力上限
Upper bounds on the private capacity for bosonic Gaussian channels
论文作者
论文摘要
最近，在玻感高斯通道的各种量子通道能力的边界上取得了很大进展。尤其是，通过一种称为量子熵功率不平等的技术，经典能力的几个上限和玻色子高斯通道上的量子容量已经揭示了了解神秘的量子通道容量问题。但是，关于某些通用上限的研究仍然缺少量子通道上私人容量的上限。在这里，我们通过有条件的量子熵功率不等式的玻色峰高斯通道的私人容量来得出上限。
Recently, there have been considerable progresses on the bounds of various quantum channel capacities for bosonic Gaussian channels. Especially, several upper bounds for the classical capacity and the quantum capacity on the bosonic Gaussian channels, via a technique known as quantum entropy power inequality, have been shed light on understanding the mysterious quantum-channel-capacity problems. However, upper bounds for the private capacity on quantum channels are still missing for the study on certain universal upper bounds. Here, we derive upper bounds on the private capacity for bosonic Gaussian channels involving a general Gaussian-noise case through the conditional quantum entropy power inequality.
