Purification of genuine multipartite entanglement

Journal Article · Wed Jun 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.062321· OSTI ID:21550071

Huber, Marcus ^[1]; Plesch, Martin ^[2]

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1. Faculty of Physics, University of Vienna, Vienna (Austria)
2. Faculty of Informatics, Masaryk University, Brno, Czech Republic and Institute of Physics, Slovak Academy of Sciences, Bratislava (Slovakia)

In tasks where multipartite entanglement plays a central role, state purification is, due to inevitable noise, a crucial part of the procedure. We consider a scenario exploiting the multipartite entanglement in a straightforward multipartite purification algorithm and compare it to bipartite purification procedures combined with state teleportation. While complete purification requires an infinite amount of input states in both cases, we show that for an imperfect output fidelity the multipartite procedure exhibits a major advantage in terms of input states used.

• OSTI ID: 21550071
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALGORITHMS
MATHEMATICAL LOGIC
NOISE
QUANTUM ENTANGLEMENT
QUANTUM TELEPORTATION