Cloning of observables

A Ferraro*, M Galbiati, MGA Paris

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

We introduce the concept of cloning for classes of observables and classify cloning machines for qubit systems according to the number of parameters needed to describe the class under investigation. A no-cloning theorem for observables is derived and the connections between cloning of observables and joint measurements of noncommuting observables are elucidated. Relationships with cloning of states and non-demolition measurements are also analysed.

Original languageEnglish
Pages (from-to)L219-L228
Number of pages10
JournalJournal Of Physics A-mathematical And General
Volume39
Issue number14
Publication statusPublished - 07 Apr 2006

Keywords

  • QUANTUM CLONING
  • COMMUNICATION

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