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Q: Fachverband Quantenoptik und Photonik

Q 16: Quantum Information (Concepts and Methods) III

Q 16.5: Vortrag

Dienstag, 10. März 2020, 15:00–15:15, e001

Multiparticle entanglement detection on sector lengths — •Satoya Imai, Nikolai Wyderka, and Otfried Gühne — Naturwissenschaftlich-Technische Fakultät, Universität Siegen,Walter-Flex-Str. 3, D-57068 Siegen, Germany

Entanglement is one of the most striking phenomena in modern quantum physics. Its emerging properties have played a central role in applications of quantum information. Its generation has also been achieved experimentally, while actual noise effects make us not being sure if a created state is truly entangled. It is thus required to study how to detect entanglement.

We propose a theoretical method for entanglement detection in multiparticle qubit systems. We employ the concept of sector lengths, which can quantify the degree of quantum correlations and have the property of local unitary invariant. We show that the linear combinations of sector lengths can detect genuine multiparticle entanglement.