The minimum entropy output of a quantum channel is locally additive

Gilad Gour, Shmuel Friedland

Research output: Contribution to journalArticlepeer-review

Abstract

We show that the minimum von Neumann entropy output of a quantum channel is locally additive. Hastings' counterexample for the additivity conjecture makes this result quite surprising. In particular, it indicates that the nonadditivity of the minimum entropy output is a global effect of quantum channels.

Original languageEnglish
Article number6268344
Pages (from-to)603-614
Number of pages12
JournalIEEE Transactions on Information Theory
Volume59
Issue number1
DOIs
StatePublished - 2013
Externally publishedYes

Keywords

  • Additivity conjecture
  • quantum channel capacity
  • quantum channels
  • quantum entanglement

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences

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