Hannover 2013 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 61: Quantum information: Atoms and ions V
Q 61.5: Vortrag
Freitag, 22. März 2013, 12:00–12:15, E 214
Entanglement quantification by neutron scattering — •Oliver Marty1, Michael Epping2, Hermann Kampermann2, Dagmar Bruß2, Martin Plenio1, and Marcus Cramer1 — 1Institut f. Theoretische Physik, Universtität Ulm, Ulm, Germany — 2Institute f. Theoretische Physik III, Heinrich-Heine Universität Düsseldorf, Düsseldorf, Germany
We present studies about the quantification of the entanglement contained in large samples of magnetic materials by structure factor measurements – a standard tool in analysing condensed matter systems. We discuss experimentally relevant models (such as Heisenberg [1], Majumdar-Ghosh and XY models) in different geometries and with different spin numbers. For those, lower bounds to entanglement measures can be read off directly from the cross section obtained in neutron-scattering experiments.
N.B. Christensen et al., Proc. Natl. Acad. Sci. USA, 104, 15264 (2007)