Polygamy of distributed entanglement

Journal Article · Wed Jul 15 00:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.012324· OSTI ID:21313234

Buscemi, Francesco ^[1]; Gour, Gilad ^[2]; Kim, Jeong San ^[2]

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1. Statistical Laboratory, DPMMS, University of Cambridge, Cambridge CB3 0WB (United Kingdom)
2. Institute for Quantum Information Science, University of Calgary, Alberta, T2N 1N4 (Canada)

While quantum entanglement is known to be monogamous (i.e., shared entanglement is restricted in multipartite settings), here we show that distributed entanglement (or the potential for entanglement) is by nature polygamous. By establishing the concept of one-way unlocalizable entanglement (UE) and investigating its properties, we provide a polygamy inequality of distributed entanglement in tripartite quantum systems of arbitrary dimension. We also provide a polygamy inequality in multiqubit systems and several trade-offs between UE and other correlation measures.

• OSTI ID: 21313234
• Journal Information: Physical Review. A, Vol. 80, Issue 1; Other Information: DOI: 10.1103/PhysRevA.80.012324; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CORRELATIONS
POTENTIALS
QUANTUM COMPUTERS
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION