Simultaneous Decoding of Classical Coset Codes over $3-$User Quantum Broadcast Channel: New Achievable Rate Regions

Combining the technique of employing coset codes for communicating over a quantum broadcast channel and the recent discovery of tilting, smoothing and augmentation by Sen to perform simultaneous decoding over network quantum channels, we derive new inner bounds to the capacity region of a $3-$user classical quantum broadcast channel that subsumes all known.