Quantum mechanical interaction-free measurements
- Cite this article as:
- Elitzur, A.C. & Vaidman, L. Found Phys (1993) 23: 987. doi:10.1007/BF00736012
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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.