Classical capacity of a quantum multiple-access channel

Abstract

We consider the transmission of classical information over a quantum channel by two senders. The channel capacity region is shown to be a convex hull bound by the Von Neumann entropy and the conditional Von Neumann entropy. We discuss some possible applications of our result. We also show that our scheme allows a reasonable distribution of channel capacity over two senders.

The capacity of the quantum multiple-access channel

“…A note on the literature: Since the findings of the present paper (published at that time only as an e-print (quant-ph/9807019)) an article by Huang, Zhang, and Hou [10] on quantum multiple access channels has appeared, where the 2-sender pure state case of a multiple access channel is treated.…”