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Teoreticheskaya i Matematicheskaya Fizika, 2008, Volume 155, Number 3, Pages 453–462
DOI: https://doi.org/10.4213/tmf6222 (Mi tmf6222) 		 
This article is cited in 1 scientific paper (total in 1 paper)

Entanglement measures based on observable correlations

S. L. Luo

Academy of Mathematics and Systems Science
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DOI: https://doi.org/10.4213/tmf6222
Abstract: By regarding quantum states as communication channels and using observable correlations quantitatively expressed by mutual information, we introduce a hierarchy of entanglement measures that includes the entanglement of formation as a particular instance. We compare the maximal and minimal measures and indicate the conceptual advantages of the minimal measure over the entanglement of formation. We reveal a curious feature of the entanglement of formation by showing that it can exceed the quantum mutual information, which is usually regarded as a theoretical measure of total correlations. This places the entanglement of formation in a broader scenario, highlights its peculiarity in relation to pure-state ensembles, and introduces a competing definition with intrinsic informational significance.
Keywords: entanglement, mutual information, observable correlations, entanglement of formation.
Received: 02.02.2007
English version:
Theoretical and Mathematical Physics, 2008, Volume 155, Issue 3, Pages 896–904
DOI: https://doi.org/10.1007/s11232-008-0075-y
Bibliographic databases:
Language: Russian
Citation: S. L. Luo, “Entanglement measures based on observable correlations”, TMF, 155:3 (2008), 453–462; Theoret. and Math. Phys., 155:3 (2008), 896–904
Citation in format AMSBIB
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  • https://www.mathnet.ru/eng/tmf/v155/i3/p453
    • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    		Теоретическая и математическая физика Theoretical and Mathematical Physics
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