Converting multilevel nonclassicality into genuine multipartite entanglement
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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2018
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| Online Access: | https://eprints.nottingham.ac.uk/50165/ |
| _version_ | 1848798173220306944 |
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| author | Regula, Bartosz Piani, Marco Cianciaruso, Marco Bromley, Thomas R. Streltsov, Alexander Adesso, Gerardo |
| author_facet | Regula, Bartosz Piani, Marco Cianciaruso, Marco Bromley, Thomas R. Streltsov, Alexander Adesso, Gerardo |
| author_sort | Regula, Bartosz |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T20:15:33Z |
| format | Article |
| id | nottingham-50165 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:15:33Z |
| publishDate | 2018 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-501652018-04-05T09:16:17Z https://eprints.nottingham.ac.uk/50165/ Converting multilevel nonclassicality into genuine multipartite entanglement Regula, Bartosz Piani, Marco Cianciaruso, Marco Bromley, Thomas R. Streltsov, Alexander Adesso, Gerardo 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. IOP Publishing 2018-03-26 Article PeerReviewed application/pdf en cc_by https://eprints.nottingham.ac.uk/50165/8/Regula_2018_New_J._Phys._20_033012.pdf Regula, Bartosz, Piani, Marco, Cianciaruso, Marco, Bromley, Thomas R., Streltsov, Alexander and Adesso, Gerardo (2018) Converting multilevel nonclassicality into genuine multipartite entanglement. New Journal of Physics, 20 . 033012/1-033012/13. ISSN 1367-2630 http://iopscience.iop.org/article/10.1088/1367-2630/aaae9d/meta doi:10.1088/1367-2630/aaae9d doi:10.1088/1367-2630/aaae9d |
| spellingShingle | Regula, Bartosz Piani, Marco Cianciaruso, Marco Bromley, Thomas R. Streltsov, Alexander Adesso, Gerardo Converting multilevel nonclassicality into genuine multipartite entanglement |
| title | Converting multilevel nonclassicality into genuine multipartite entanglement |
| title_full | Converting multilevel nonclassicality into genuine multipartite entanglement |
| title_fullStr | Converting multilevel nonclassicality into genuine multipartite entanglement |
| title_full_unstemmed | Converting multilevel nonclassicality into genuine multipartite entanglement |
| title_short | Converting multilevel nonclassicality into genuine multipartite entanglement |
| title_sort | converting multilevel nonclassicality into genuine multipartite entanglement |
| url | https://eprints.nottingham.ac.uk/50165/ https://eprints.nottingham.ac.uk/50165/ https://eprints.nottingham.ac.uk/50165/ |