Phys. Rev. A 64, 032302 (2001) [7 pages]Nonlocal content of quantum operationsReceived 5 June 2000; revised 20 February 2001; published 7 August 2001 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. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.64.032302
DOI:
10.1103/PhysRevA.64.032302
PACS:
03.67.-a
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