Contextuality within quantum mechanics manifested in subensemble mean values
arXiv:0912.3570 · doi:10.1016/j.physleta.2009.07.063
Abstract
For spin-1/2 particles, using a suitable Mach-Zehnder-type setup with a spin-flipper, we argue that it is a direct consequence of the quantum mechanical treatment that an experimentally verifiable \textit{subensemble} mean of the measured values of an arbitrarily chosen spin variable exhibits dependence on the choice of a comeasurable `path' observable. This, in turn, enables inferring path-spin contextuality at the level of individual measured values of spin that are predetermined using a relevant hidden-variable model applied to our setup.
6 pages, 1 figure
References in corpus (2)
Cited by in corpus (8)
- On the violation of Lders bound of macrorealist and noncontextual inequalities
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- Semi-device independent randomness certification using Mermin's proof of Kochen-Specker contextuality
- Quantum contextuality in N-boson systems
- Quantum contextuality for a three-level system sans realist model
- Quantum mechanical effect of path-polarization contextuality for a single photon
- Second Comment on "Contextuality within quantum mechanics manifested in subensemble mean values" [Phys. Lett. A 373 (2009) 3430]
- Reply to the "Comment on 'Contextuality within quantum mechanics manifested in subensemble mean values[Phys. Lett. A 373(2009)3430, arXiv:0912.3570]' "