Dispensing of quantum information beyond no-broadcasting theorem—is it possible to broadcast anything genuinely quantum?

Teiko Heinosaari, Anna Jenčová, Martin Plávala (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

No-broadcasting theorem is one of the most fundamental results in quantum information theory; it guarantees that the simplest attacks on any quantum protocol, based on eavesdropping and copying of quantum information, are impossible. Due to the fundamental importance of the no-broadcasting theorem, it is essential to understand the exact boundaries of this limitation. We generalize the standard definition of broadcasting by restricting the set of states which we want to broadcast and restricting the sets of measurements which we use to test the broadcasting. We show that in some of the investigated cases broadcasting is equivalent to commutativity, while in other cases commutativity is not necessary.

Original languageEnglish
Article number135301
JournalJournal of Physics A: Mathematical and Theoretical
Volume56
Issue number13
DOIs
Publication statusPublished - 31 Mar 2023
MoE publication typeA1 Journal article-refereed

Keywords

  • commutativity
  • no-broadcasting
  • no-cloning

Fingerprint

Dive into the research topics of 'Dispensing of quantum information beyond no-broadcasting theorem—is it possible to broadcast anything genuinely quantum?'. Together they form a unique fingerprint.

Cite this