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Are Interaction-free Measurements Interaction Free?

L. Vaidman
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Abstract

In 1993 Elitzur and Vaidman introduced the concept of interaction-free measurements which allowed finding objects without ``touching'' them. In the proposed method, since the objects were not touched even by photons, thus, the interaction-free measurements can be called as ``seeing in the dark''. Since then several experiments have been successfully performed and various modifications were suggested. Recently, however, the validity of the term ``interaction-free'' has been questioned. The criticism of the name is briefly reviewed and the meaning of the interaction-free measurements is clarified.

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L. Vaidman. 2000-06-16. Are Interaction-free Measurements Interaction Free?. https://doi.org/10.1134/1.1405211

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