Referenced Items are not available for this document.
We find a regularized formula for the entanglement-assisted (EA) capacity region for quantum multiple-access channels (QMAC). We illustrate the capacity region calculation with the example of the collective phase-flip channel which admits a single-letter characterization. On the way, we provide a first-principles proof of the EA coding theorem based on a packing argument. We observe that the Holevo-Schumacher-Westmoreland theorem may be obtained from a modification of our EA protocol. We remark on the existence of a family hierarchy of protocols for multiparty scenarios with a single receiver, in analogy to the two-party case. In this way, we relate several previous results regarding QMACs.
Published in:
Information Theory, IEEE Transactions on
(Volume:54
,
Issue:
7
)
Date of Publication: July 2008
- Page(s):
- 3078 - 3090
- ISSN :
- 0018-9448
- INSPEC Accession Number:
- 10064444
- Digital Object Identifier :
- 10.1109/TIT.2008.924726
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 17 June 2008
- Issue Date :
- July 2008
- Sponsored by :
- IEEE Information Theory Society
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