Bell Inequalities for Continuously Emitting Sources

QuICS Seminar

Scott Glancy (NIST-Boulder)
October 28, 2015
CSS 3100A

A common experimental strategy for testing local realism is to show violation of a Bell inequality by measuring a continuously emitted stream of entangled photon pairs. Estimating the amount of violation depends on determining when photon detections are "coincident", but usual methods for making that determination can allow a local realistic system to appear to violate the inequality. In this talk I will describe a family of Bell inequalities, which are derived from the triangle inequality, and whose violation unambiguously rejects local realism. These Bell inequalities have been applied to experimental data sets where the usual coincidence analysis fails because it falsely reports violation, requires extra assumptions, or is unable to find any violation. This work is based on the papers at
http://arxiv.org/abs/1503.07573 and http://arxiv.org/abs/1409.7732