Questions tagged [contextuality]
Property of hidden variable theories which produce the same predictions regarding outcomes of measurements as standard quantum mechanics, but which are supposed to be realistic differently than quantum mechanics. The outcomes of an observable depend on the choice of the other observables simultaneously measured.
1
question with no upvoted or accepted answers
1
vote
1
answer
39
views
What does it mean for two compatible observables to be a "coarse-graining" of a third?
In reading about quantum contextuality, I've encountered the statement that
if [A,B] = 0, then there exists another observable C such that the
spectral projections of A and B are a coarse-graining ...
- 1,325