Abstract
We demonstrate that intensity correlations of second order in the fluorescence light of single-photon emitters may violate locality while the visibility of the signal remains below . For this, we derive a homogeneous Bell-Wigner–type inequality, which can be applied to a broad class of experimental setups. We trace the violation of this inequality back to path entanglement created by the process of detection.
- Received 23 May 2010
DOI:https://doi.org/10.1103/PhysRevA.82.032116
©2010 American Physical Society