{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T03:22:15Z","timestamp":1790306535381,"version":"4.1.0"},"reference-count":0,"publisher":"American Association of Physics Teachers (AAPT)","issue":"10","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[1981,10,1]]},"abstract":"<jats:p>In Heisenberg\u2019s famous discussion of the measurement of a particle\u2019s position using a microscope, the momentum transferred to the particle by the scattered photon makes the particle\u2019s momentum uncertain. It is shown that momentum is also transferred when the lack of a scattered photon is used to discover that the particle is absent from the field of view of the microscope (i.e., located outside the light beam). This apparent paradox, a transfer of momentum and\/or energy to a missing particle by a light beam (without the scattering of a photon), is discussed and \u2019\u2019resolved\u2019\u2019 using quantum measurement theory.<\/jats:p>","DOI":"10.1119\/1.12592","type":"journal-article","created":{"date-parts":[[2005,3,5]],"date-time":"2005-03-05T14:55:07Z","timestamp":1110034507000},"page":"925-930","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":167,"title":["Interaction-free quantum measurements: A paradox?"],"prefix":"10.1119","volume":"49","author":[{"given":"R. H.","family":"Dicke","sequence":"first","affiliation":[{"name":"Joseph Henry Laboratories, Physics Department, Princeton University, Princeton, New Jersey 08544"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3","container-title":["American Journal of Physics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.aip.org\/aapt\/ajp\/article-pdf\/49\/10\/925\/11864780\/925_1_online.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.aip.org\/aapt\/ajp\/article-pdf\/49\/10\/925\/11864780\/925_1_online.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,8]],"date-time":"2023-08-08T02:44:44Z","timestamp":1691462684000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.aip.org\/ajp\/article\/49\/10\/925\/1051488\/Interaction-free-quantum-measurements-A-paradox"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1981,10,1]]},"references-count":0,"journal-issue":{"issue":"10","published-print":{"date-parts":[[1981,10,1]]}},"URL":"https:\/\/doi.org\/10.1119\/1.12592","relation":{},"ISSN":["0002-9505","1943-2909"],"issn-type":[{"value":"0002-9505","type":"print"},{"value":"1943-2909","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[1981,10]]},"published":{"date-parts":[[1981,10,1]]}}}