Comment on "Counterfactual entanglement and nonlocal correlations in separable states"

Daniel R. Terno*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

5 Citations (Scopus)


The arguments of Cohen [Phys. Rev. A 60, 80 (1999)] against the "ignorance interpretation" of mixed states are questioned. The physical arguments are shown to be inconsistent and the supporting example illustrates the opposite of the original statement. The operational difference between two possible definitions of mixed states is exposed and the inadequacy of one of them is stressed.

Original languageEnglish
Article number016101
Pages (from-to)1-3
Number of pages3
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number1
Publication statusPublished - 2001
Externally publishedYes

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