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Quantum Foundations
Temporal quantum correlations and Leggett-Garg inequalities in multi-level systems
arXiv
Authors: Costantino Budroni, Clive Emary
Year
2013
Paper ID
32715
Status
Preprint
Abstract Read
~2 min
Abstract Words
80
Citations
N/A
Abstract
We show that the quantum bound for temporal correlations in a Leggett-Garg test, analogous to the Tsirelson bound for spatial correlations in a Bell test, strongly depends on the number of levels N that can be accessed by the measurement apparatus via projective measurements. We provide exact bounds for small N, that exceed the known bound for the Leggett-Garg inequality, and show that in the limit N→ infty the Leggett-Garg inequality can be violated up to its algebraic maximum.
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- We show that the quantum bound for temporal correlations in a Leggett-Garg test, analogous to the Tsirelson bound for spatial correlations in a Bell test, strongly depends on...
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