Signatures for Generalized Macroscopic Superpositions

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Title Signatures for Generalized Macroscopic Superpositions
Author Cavalcanti, Eric Gama; Reid, M. D.
Journal Name Physical Review Letters
Year Published 2006
Place of publication Ridge, NY
Publisher American Physical Society
Abstract We develop criteria sufficient to enable detection of macroscopic coherence where there are not just two macroscopically distinct outcomes for a pointer measurement, but rather a spread of outcomes over a macroscopic range. The criteria provide a means to distinguish a macroscopic quantum description from a microscopic one based on mixtures of microscopic superpositions of pointer-measurement eigenstates. The criteria are applied to Gaussian-squeezed and spin-entangled states.
Peer Reviewed Yes
Published Yes
Publisher URI http://prl.aps.org/
Alternative URI http://dx.doi.org/10.1103/PhysRevLett.97.170405
Copyright Statement Copyright 2006 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Volume 97
Issue Number 17
Page from 170405
Page to 170408
ISSN 0031-9007
Date Accessioned 2009-11-11
Date Available 2009-12-11T06:45:55Z
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Quantum Physics
URI http://hdl.handle.net/10072/26819
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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