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Q: Fachverband Quantenoptik und Photonik

Q 37: Quantum information: Concepts and methods I

Q 37.5: Vortrag

Donnerstag, 20. März 2014, 11:30–11:45, Kinosaal

Entanglement properties of hypergraph states — •Frank Steinhoff, Tobias Moroder, and Otfried Gühne — Naturwissenschaftlich-Technische Fakultät, Universität Siegen, Walter-Flex-Str. 3, D-57068 Siegen, Germany

Recently the formalism of hypergraph states was introduced in the literature [1,2], motivated initially by their role in Grover’s and Deutsch-Josza’s algorithms. Standard graph states are, as expected, a special case within this construction, which brings the question of the main differences between graph states and the more general hypergraph states. In this work we characterize some properties of the entanglement of hypergraph states, adress their equivalence under local operations, search for suitable entanglement monotones and entanglement witnesses and study some qualitative aspects of the hypergraph framework.

[1] M. Rossi, M. Huber, D. Bruß, C. Machiavello, New J. Phys. 15, 113022 (2013).

[2] R. Qu, J. Wang, Z-S. Li, Y-R. Bao, Phys. Rev. A 87, 022311 (2013).