Nonlocal content of quantum operations

D Collins, N Linden, S Popescu

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


We show that quantum operations on multiparticle systems have a nonlocal content; this mirrors the nonlocal content of quantum states. We introduce a general framework for discussing the nonlocal content of quantum operations, and give a number of examples. Quantitative relations between quantum actions and the entanglement and classical communication resources needed to implement these actions are also described. We also show how entanglement can catalyze classical communication from a quantum action.

Original languageEnglish
Article number032302
Pages (from-to)-
Number of pages7
JournalPhysical Review A: Atomic, Molecular and Optical Physics
Issue number3
Publication statusPublished - Sept 2001


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