We undertake a Shannon theoretic study of the problem of communicating bit streams over a 3-user quantum interference channel (QIC) and focus on characterizing inner bounds. Adopting the powerful technique of tilting, smoothing, and augmentation discovered by Sen recently, and combining with our coset code strategy, we derive a new inner bound to the classical-quantum capacity region of a 3-user QIC. The derived inner bound subsumes all currently known bounds and is proven to be strictly larger for identified examples.

翻译：我们针对3用户量子干扰信道(QIC)上的比特流通信问题进行了香农理论研究，重点刻画了内界。采用Sen近期发现的倾斜、平滑与增强这一强大技术，并结合我们的陪集码策略，我们推导出了3用户QIC的经典-量子容量区域的新内界。该推导出的内界包含了当前所有已知界，并证明在特定示例中严格更大。