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Equivalence between macroscopic quantum superpositions and maximally entangled states: application to phase-shift detection

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Luis Aina, Alfredo (2001) Equivalence between macroscopic quantum superpositions and maximally entangled states: application to phase-shift detection. Physical review A, 64 (5). 054102_1-054102_4. ISSN 1050-2947

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Official URL: http://dx.doi.org/10.1103/PhysRevA.64.054102


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Abstract

We demonstrate that the superpositions of macroscopically distinct coherent states are maximally entangled states. Among other possible applications of this result, in this paper we show that the experimental arrangements generating superpositions of macroscopically distinct coherent states may be adapted for precision phase-shift detection reaching the maximum sensitivity allowed by quantum physics (Heisenberg limit).


Item Type:Article
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©2001 The American Physical Society

Uncontrolled Keywords:Pair coherent states; Schrodinger cat states; Nonclassical states; Distinct states; Trapped ions; Decoherence; Generation; Cavity; Motion; Atom
Subjects:Sciences > Physics > Optics
ID Code:31487
Deposited On:03 Aug 2015 12:40
Last Modified:03 Aug 2015 12:40

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