Heidelberg 2015 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 31: Poster: Quantum Optics and Photonics II

Q 31.38: Poster

Dienstag, 24. März 2015, 17:00–19:00, C/Foyer

Higher-order separability conditions — •Evgeny Shchukin — Johannes-Gutenberg University of Mainz, Institute of Physics, Mainz, Deutschland

We derive a set of higher-order conditions for bipartite entanglement. We start with a minimization problem for the single-partite case and, using the results obtained, establish some inequalities for higher-order moments satisfied by all bipartite separable states. We also demonstrate that our fourth-order condition cannot be violated by Gaussian states. Violations of all our conditions are provided, so they can be used as entanglement tests.