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Jochen Szangolies

Jochen Szangolies former Diploma student

Publications

See also arxiv

J. Szangolies, M. Kleinmann, O. Gühne
Tests against noncontextual models with measurement disturbances
Physical Review A 87, 050101(R) (2013), arXiv:1303.3837

The testability of the Kochen-Specker theorem is a subject of ongoing controversy. A central issue is that experimental implementations relying on sequential measurements cannot achieve perfect compatibility between the measurements and that therefore the notion of noncontextuality is not well defined. We demonstrate by an explicit model that such compatibility violations may yield a violation of noncontextuality inequalities, even if we assume that the incompatibilities merely originate from context-independent noise. We show, however, that this problem can be circumvented by combining the ideas behind Leggett-Garg inequalities with those of the Kochen-Specker theorem.

 
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