Capacity Theorems for Quantum Multiple Access Channels

Details Capacity Theorems for Quantum Multiple Access Channels Capacity Theorems for Quantum Multiple Access Channels

2005-08-04

arxiv.org/abs/cs/0508031v1

Proceedings of the IEEE Symposium on Information Theory, Adelaide, pp. 884-888, 2005

Computer Science

Information Theory

5 pages. Conference version of quant-ph/0501045, to appear in the proceedings of the IEEE International Symposium on Informati

Scientific paper

10.1109/ISIT.2005.1523464

We consider quantum channels with two senders and one receiver. For an arbitrary such channel, we give multi-letter characterizations of two different two-dimensional capacity regions. The first region characterizes the rates at which it is possible for one sender to send classical information while the other sends quantum information. The second region gives the rates at which each sender can send quantum information. We give an example of a channel for which each region has a single-letter description, concluding with a characterization of the rates at which each user can simultaneously send classical and quantum information.

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