dc.contributor.author Rowe, MA en_US dc.contributor.author Kielpinski, D en_US dc.contributor.author Meyer, V en_US dc.contributor.author Sackett, CA en_US dc.contributor.author Itano, WM en_US dc.contributor.author Monroe, C en_US dc.contributor.author Wineland, DJ en_US dc.date.accessioned 2017-05-03T15:05:40Z dc.date.available 2017-05-03T15:05:40Z dc.date.issued 2001 en_US dc.date.modified 2008-05-08T10:24:00Z dc.identifier.issn 00280836 en_US dc.identifier.uri http://hdl.handle.net/10072/18608 dc.description.abstract Local realism is the idea that objects have dete properties whether or not they are measured, and that measurements of these properties are not affected by events taking place sufently far away1. Einstein, Podolsky and Rosen2 used these reasonable assumptions to conclude that quantum mechanics is incomplete. Starting in 1965, Bell and others constructed mathematical inequalities whereby experimental tests could distinguish between quantum mechanics and local realistic theories1,3ᵮ Many experiments1,6ᱵ have since been done that are consistent with quantum mechanics and inconsistent with local realism. But these conclusions remain the subject of considerable interest and debate, and experiments are still being red to overcome loopholes' that might allow a local realistic interpretation. Here we have measured correlations in the classical properties of massive entangled particles (9Be+ ions): these correlations violate a form of Bell's inequality. Our measured value of the appropriate Bell's signal' is 2:25 6 0:03, whereas a value of 2 is the maximum allowed by local realistic theories of nature. In contrast to previous measurements with massive particles, this violation of Bell's inequality was obtained by use of a complete set of measurements. Moreover, the high detection efency of our apparatus eliminates the so-called `detection' loophole. en_US dc.description.peerreviewed Yes en_US dc.description.publicationstatus Yes en_AU dc.language English en_US dc.language.iso en_AU dc.publisher Nature Publishing Group en_US dc.publisher.place England en_US dc.relation.ispartofpagefrom 791 en_US dc.relation.ispartofpageto 794 en_US dc.relation.ispartofjournal Nature en_US dc.relation.ispartofvolume 409 en_US dc.subject.fieldofresearchcode 240301 en_US dc.title Experimental violation of a Bell's inequality with efficient detection en_US dc.type Journal article en_US dc.type.description C1 - Peer Reviewed (HERDC) en_US dc.type.code C - Journal Articles en_US gro.date.issued 2001 gro.hasfulltext No Full Text
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