Capacity theorems for quantum multiple-access channels: classical-quantum and quantum-quantum capacity regions
Capacity theorems for quantum multiple-access channels: classical-quantum and quantum-quantum capacity regions
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> We consider quantum channels with two senders and one receiver. For an arbitrary such channel, we give multiletter characterizations of two different two-dimensional capacity regions. The first region comprises the rates at which it is possible for one sender to send classical information, while the other sends …