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Possibility of generalized monogamy relations for multipartite entanglement beyond three qubits
Eltschka, Christopher
, Osterloh, Andreas
and Siewert, Jens
(2009)
Possibility of generalized monogamy relations for multipartite entanglement beyond three qubits.
Physical Review A (PRA) 80 (3), 032313.
Date of publication of this fulltext: 28 Apr 2010 11:41
Article
DOI to cite this document: 10.5283/epub.14527
Abstract
We discuss the possibility to interpret the residual entanglement for more than three qubits in terms of distributed multipartite entanglement or, in other words, possible extensions of the Coffman-Kundu-Wootters monogamy equality to higher qubit numbers. Existing knowledge on entanglement in multipartite systems puts narrow constraints on the form of such extensions. We study various examples ...
We discuss the possibility to interpret the residual entanglement for more than three qubits in terms of distributed multipartite entanglement or, in other words, possible extensions of the Coffman-Kundu-Wootters monogamy equality to higher qubit numbers. Existing knowledge on entanglement in multipartite systems puts narrow constraints on the form of such extensions. We study various examples for families of pure four-qubit states for which the characterization of three-qubit and four-qubit entanglement in terms of polynomial invariants is known. These examples indicate that, although families with such extensions do exist, a generalized monogamy equality cannot be found along those lines.
Involved Institutions
Details
| Item type | Article | ||||||
| Journal or Publication Title | Physical Review A (PRA) | ||||||
| Publisher: | AMER PHYSICAL SOC | ||||||
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| Place of Publication: | COLLEGE PK | ||||||
| Volume: | 80 | ||||||
| Number of Issue or Book Chapter: | 3 | ||||||
| Page Range: | 032313 | ||||||
| Date | September 2009 | ||||||
| Institutions | Physics > Institute of Theroretical Physics | ||||||
| Identification Number |
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| Classification |
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| Keywords | MONOTONES; SYSTEMS; | ||||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||||
| Status | Published | ||||||
| Refereed | Yes, this version has been refereed | ||||||
| Created at the University of Regensburg | Yes | ||||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-145275 | ||||||
| Item ID | 14527 |
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