Local content of bipartite qubit correlations
Source: Phys. Rev. A 81, 022103 (2010); doi:10.1103/PhysRevA.81.022103
Published 3 February 2010
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One of the last open problems concerning two qubits in a pure state is to find the exact local content of their correlation, in the sense of Elitzur, Popescu, and Rohrlich (EPR2) [A. C. Elitzur, S. Popescu, and D. Rohrlich, Phys. Lett. A162, 25 (1992)]. We propose an EPR2 decomposition that allows us to prove, for a wide range of states |
(
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=cos|00+sin|11, that their local content is ![[overline p[sub L]]](http://scitation.aip.org/servlet/GetImg?key=VIRT04000010000002000107000001%3A0%3A0%3A28&t=a&d=a)
()=cos2. We also share reflections on how to possibly extend this result to all two-qubit pure states.
©2010 The American Physical Society
()=cos|00+sin|11, that their local content is )=cos2. We also share reflections on how to possibly extend this result to all two-qubit pure states.
©2010 The American Physical Society
| History: | Received 22 September 2009; published 3 February 2010 |
| Permalink: |
http://link.aps.org/abstract/PRA/v81/e022103 |
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