Abstract
An analysis of detector-efficiency in many-site Clauser-Horne inequalities is presented for the case of perfect visibility. It is shown that there is a violation of the presented n-site Clauser-Horne inequalities if and only if the efficiency is greater than Thus, for a two-site two-setting experiment there are no quantum-mechanical predictions that violate local realism unless the efficiency is greater than Second, there are n-site experiments for which the quantum-mechanical predictions violate local realism whenever the efficiency exceeds
- Received 5 June 2000
DOI:https://doi.org/10.1103/PhysRevA.63.022117
©2001 American Physical Society