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Rostock 2019 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 59: Quantum Information (Concepts and Methods) V

Q 59.1: Talk

Friday, March 15, 2019, 10:30–10:45, S HS 001 Chemie

Relaxing Kochen Specker Inequalities — •Fabian Bernards, Otfried Gühne, and Matthias Kleinmann — Universität Siegen

When experimentally testing multiparticle quantum non-locality with Bell inequalities, one can distinguish between two types of tests: First, there are inequalities that only hold for fully local models, such as Mermin's inequality. Second, there are inequalities such as Svetlichny's inequality that also hold for hybrid models, i.e models that allow for non-classical correlations between some of the particles. In this way, Svetlichny's inequality is a Bell inequality that works with weaker assumptions than Mermin's inequality.

In the same spirit, we explore the possibility of finding an inequality to test contextuality while using fewer assumptions by not demanding measurement compatibility for all measurements within a measurement sequence.

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