Direkt zum Inhalt

Eltschka, Christopher ; Osterloh, Andreas ; Siewert, Jens

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 typeArticle
Journal or Publication TitlePhysical Review A (PRA)
Publisher:AMER PHYSICAL SOC
Place of Publication:COLLEGE PK
Volume:80
Number of Issue or Book Chapter:3
Page Range:032313
DateSeptember 2009
InstitutionsPhysics > Institute of Theroretical Physics
Identification Number
ValueType
10.1103/PhysRevA.80.032313DOI
arXiv:0904.1034arXiv ID
Classification
NotationType
03.67.Mn, 03.65.UdPACS
KeywordsMONOTONES; SYSTEMS;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-145275
Item ID14527

Export bibliographical data

Owner only: item control page

nach oben