Quantum mechanical interaction-free measurements |
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| Authors: | Avshalom C Elitzur Lev Vaidman |
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| Institution: | (1) School of Physics and Astronomy, Tel-Aviv University, 69 978 Tel Aviv, Israel;(2) the Department of Chemical Physics, The Weizmann Institute of Science, 76 100 Rehovot, Israel |
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| Abstract: | 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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