Purification of genuine multipartite entanglement

Author(s)
Marcus Huber, Martin Plesch
Abstract

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.

Organisation(s)
Particle Physics
External organisation(s)
Masaryk University
Journal
Physical Review A
Volume
83
No. of pages
4
ISSN
1050-2947
DOI
https://doi.org/10.1103/PhysRevA.83.062321
Publication date
2011
Peer reviewed
Yes
Austrian Fields of Science 2012
1030 Physics, Astronomy
Portal url
https://ucrisportal.univie.ac.at/en/publications/purification-of-genuine-multipartite-entanglement(aaf7a2ee-5263-4f34-bd8e-9f2de451d2b9).html