Hi all,
Tomorrow Eliott Mamon will present his semester project with Victor, entitled "Exploring noncontextuality of prepare-and-measure scenarios with a numerical algorithm". See below for the abstract. Join us at 2pm on zoom: https://ethz.zoom.us/j/362994444
Best,
Joe
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Using a numerical implementation of the unit-separability algorithm proposed in [1], the question of existence of a noncontextual model is assessed for various single-qubit prepare-and-measure scenarios. Noncontextual scenarios that are not included in the Spekkens toy model scenario are pointed out, and a trend between contextuality and areas of randomly sampled planar scenarios is uncovered. (Non)contextuality is also assessed for scenarios involved in strategies of a two-agent encoding/decoding game, which exposes contextuality as necessary and sufficient for better-than-classical strategies at that game.
[1] Gitton, V., & Woods, M. P. (2020). Solvable criterion for the contextuality of any prepare-and-measure scenario. arXiv preprint arXiv:2003.06426