# Quantum mechanical interaction-free measurements

@article{Elitzur1993QuantumMI,
title={Quantum mechanical interaction-free measurements},
author={Avshalom C. Elitzur and Lev Vaidman},
journal={Foundations of Physics},
year={1993},
volume={23},
pages={987-997}
}
• Published 15 February 1993
• Physics
• Foundations of Physics
A novel manifestation of nonlocality of quantum mechanics is presented. It is shown that it is possible to ascertain the existence of an object in a given region of space without interacting with it. The method might have practical applications for delicate quantum experiments.
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