Converting multilevel nonclassicality into genuine multipartite entanglement

Bartosz Regula, Marco Piani, Marco Cianciaruso, Thomas R. Bromley, Alexander Streltsov, Gerardo Adesso

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Characterizing genuine quantum resources and determining operational rules for their manipulation are crucial steps to appraise possibilities and limitations of quantum technologies. Two such key resources are nonclassicality, manifested as quantum superposition between reference states of a single system, and entanglement, capturing quantum correlations among two or more subsystems. Here we present a general formalism for the conversion of nonclassicality into multipartite entanglement, showing that a faithful reversible transformation between the two resources is always possible within a precise resource-theoretic framework. Specializing to quantum coherence between the levels of a quantum system as an instance of nonclassicality, we introduce explicit protocols for such a mapping. We further show that the conversion relates multilevel coherence and multipartite entanglement not only qualitatively, but also quantitatively, restricting the amount of entanglement achievable in the process and in particular yielding an equality between the two resources when quantified by fidelity-based geometric measures.
LanguageEnglish
Pages1-10
Number of pages10
JournalNew Journal of Physics
Early online date12 Feb 2018
DOIs
Publication statusE-pub ahead of print - 12 Feb 2018

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Keywords

  • quantum resources
  • quantum technologies
  • nonclassicality
  • entanglement

Cite this

Regula, B., Piani, M., Cianciaruso, M., Bromley, T. R., Streltsov, A., & Adesso, G. (2018). Converting multilevel nonclassicality into genuine multipartite entanglement. New Journal of Physics, 1-10. https://doi.org/10.1088/1367-2630/aaae9d
Regula, Bartosz ; Piani, Marco ; Cianciaruso, Marco ; Bromley, Thomas R. ; Streltsov, Alexander ; Adesso, Gerardo. / Converting multilevel nonclassicality into genuine multipartite entanglement. In: New Journal of Physics. 2018 ; pp. 1-10.
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Regula, B, Piani, M, Cianciaruso, M, Bromley, TR, Streltsov, A & Adesso, G 2018, 'Converting multilevel nonclassicality into genuine multipartite entanglement' New Journal of Physics, pp. 1-10. https://doi.org/10.1088/1367-2630/aaae9d

Converting multilevel nonclassicality into genuine multipartite entanglement. / Regula, Bartosz; Piani, Marco; Cianciaruso, Marco; Bromley, Thomas R.; Streltsov, Alexander; Adesso, Gerardo.

In: New Journal of Physics, 12.02.2018, p. 1-10.

Research output: Contribution to journalArticle

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AU - Piani, Marco

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AU - Adesso, Gerardo

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