We study quantum channels that vary on time in a deterministic way, that is, they change in an independent but not identical way from one to another use. We derive coding theorems for the entanglement-assisted and unassisted classical capacities. We then specialize the theory to lossy bosonic quantum channels and show the existence of contrasting examples where capacities can or cannot be drawn from the limiting behavior of the lossy parameter.

中文翻译：

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无记忆但不相同的量子通道的经典容量

我们研究以确定性方式随时间变化的量子通道，也就是说，它们以独立但不相同的方式从一种用途变为另一种用途。我们推导出纠缠辅助和无辅助经典容量的编码定理。然后，我们将该理论专门用于有损玻色子量子通道，并展示了可以或不能从有损参数的限制行为中得出容量的对比示例的存在。