Interaction-Free Measurements of Optical Semitransparent Objects

TL;DR

This paper explores how the transparency of a semitransparent object affects the detection probabilities in interaction-free measurements, linking the results to wave-particle duality and Wheeler's delayed choice experiment.

Contribution

It introduces a modified interaction-free measurement framework using semitransparent objects and connects the transparency to wave or particle behavior of photons.

Findings

Detection probabilities depend on object transparency

Transparency influences wave-like or particle-like photon behavior

Results relate to Wheeler's delayed choice experiment

Abstract

We substitute the fully absorbing obstacle in the Elitzur-Vaidman experiment by a semitransparent object and show that the probabilities of detection can be manipulated in dependence of the transparency of such an object. Then, we connect our results with the delayed choice experiment proposed by Wheeler. It is found that the transparency of the obstacle determines either a particle-like or a wave-like behaviour of a test photon.