Quantum mechanical effect of path-polarization contextuality for a single photon
arXiv:1005.1242 · doi:10.1007/s10773-010-0376-4
Abstract
Using measurements pertaining to a suitable Mach-Zehnder(MZ) type setup, a curious quantum mechanical effect of contextuality between the path and the polarization degrees of freedom of a polarized photon is demonstrated, without using any notion of realism or hidden variables - an effect that holds good for the product as well as the entangled states. This form of experimental context-dependence is manifested in a way such that at \emph{either} of the two exit channels of the MZ setup used, the empirically verifiable \emph{subensemble} statistical properties obtained by an arbitrary polarization measurement depend upon the choice of a commuting(comeasurable) path observable, while this effect disappears for the \emph{whole ensemble} of photons emerging from the two exit channels of the MZ setup.
To be published in IJTP
References in corpus (11)
- Hidden Variables and the Two Theorems of John Bell
- A simple test for hidden variables in spin-1 system
- Research on Hidden Variable Theories: a review of recent progresses
- An experimental test of non-local realism
- State-independent experimental test of quantum contextuality
- Experimental test of quantum contextuality in neutron interferometry
- State-independent quantum contextuality with single photons
- Experimental Falsification of Leggett's Non-Local Variable Model
- Towards a loophole-free test of Bell's inequality with entangled pairs of neutral atoms
- Non-local Realistic Theories and the Scope of the Bell Theorem
- Contextuality within quantum mechanics manifested in subensemble mean values