Strong converse for identification via quantum channels

R Ahlswede, AJ Winter

Research output: Contribution to journalArticle (Academic Journal)peer-review

266 Citations (Scopus)


In this paper, we present a simple proof of the strong converse for identification via discrete memoryless quantum channels, based on a novel covering lemma. The new method is a generalization to quantum communication channels of Ahlswede's recently discovered approach to classical channels. It involves a development of explicit large deviation estimates to the case of random variables taking values in self-adjoint operators on a Hilbert space. This theory is presented separately in an appendix, and we illustrate it by showing its application to quantum generalizations of classical hypergraph covering problems.
Translated title of the contributionStrong converse for identification via quantum channels
Original languageEnglish
Pages (from-to)569 - 579
Number of pages11
JournalIEEE Transactions on Information Theory
Volume48 (3)
Publication statusPublished - Mar 2002

Bibliographical note

Publisher: Institute of Electrical and Electronic Engineers
Other identifier: IDS Number: 523RD


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