普世古典-当量叠加编码和普世古典-当量多存取通道编码 (Universal classical-quantum superposition coding and universal classical-quantum multiple access channel coding)

We derive universal classical-quantum superposition coding and universal classical-quantum multiple access channel code by using generalized packing lemmas for the type method. Using our classical-quantum universal superposition code, we establish the capacity region of a classical-quantum compound broadcast channel with degraded message sets. Our universal classical-quantum multiple access channel codes have two types of codes. One is a code with joint decoding and the other is a code with separate decoding. The former universally achieves corner points of the capacity region and the latter universally achieves general points of the capacity region. Combining the latter universal code with the existing result by Quantum Inf Process. 18, 246 (2019), we establish a single-letterized formula for the capacity region of a classical-quantum compound multiple access channel.

翻译：我们通过使用通用包装白蚁法,得出了普世古典-量的叠加编码和普世古典-量的多重存取通道编码。我们使用我们的古典-量的通用叠加编码,建立了古典-量的复合广播频道的功能区,其电源组已退化。我们的普世古典-量的多存取频道编码有两类编码。一种是联合解码编码的编码,另一种是单独解码的编码。前者普遍达到能力区的角点,而后者普遍达到能力区域的通用点。我们把后一种通用编码与Qantum Inf 进程的现有结果相结合。18、246(2019年),我们为古典-量的复合多存取通道的能力区制定了单一的字母公式。