Berlin 2014 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 58: Quantum information: Concepts and methods IV
Q 58.4: Vortrag
Freitag, 21. März 2014, 11:15–11:30, Kinosaal
Entanglement resources of noisy cluster states — Zhi-Hua Chen1, Jing-Ling Chen2, Christopher Eltschka3, Marcus Huber4, Zhi-Hao Ma5, and •Jens Siewert6 — 1Zhejiang University of Technology, Hangzhou, P.R. China, and National University of Singapore — 2Nankai University, Tianjin, P.R. China — 3University of Regensburg, Germany — 4Universitá Autónoma de Barcelona, and ICFO Barcelona, Spain — 5Shanghai Jiaotong University, Shanghai, P.R. China — 6University of the Basque Country, Bilbao, and Ikerbasque Foundation, Bilbao, Spain
We pose the question of a mathematical characterization for the diverse entanglement resources of multipartite quantum states in the case of linear (and also more general) cluster states. We quantitatively investigate the persistence of these resources for linear clusters of a few qubits under the addition of white noise. We hypothesize what the actual resource for measurement-based quantum computation (MBQC) might be, and we prove that it vanishes at significantly lower noise levels than genuine multipartite entanglement (GME). Technically, we introduce new criteria for GME detection and for the assessment of the MBQC resource.