Impossibility of the counterfactual computation for all possible outcomes

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Abstract

A recent proposal for counterfactual computation is analyzed. It is argued that the method does not provide counterfactual computation for all possible outcomes. The explanation involves a novel paradoxical feature of pre- and postselected quantum particles: The particle can reach a certain location without being on the path that leads to this location.

Original languageEnglish
Article number160403
JournalPhysical Review Letters
Volume98
Issue number16
DOIs
StatePublished - 18 Apr 2007

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