Phys. Rev. A 69, 022305 (2004) [6 pages]Entropy inequalities and Bell inequalities for two-qubit systemsSee Also: Erratum Received 12 March 2003; published 17 February 2004 Sufficient conditions for the nonviolation of the Bell-Clauser-Horne-Shimony-Holt inequalities in a mixed state of a two-qubit system are: (1) the linear entropy of the state is not smaller than 0.457; (2) the sum of the conditional linear entropies is not smaller than -0.086; (3) the von Neumann entropy is not smaller than 0.833; and (4) the sum of the conditional von Neumann entropies is not smaller than 0.280. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.69.022305
DOI:
10.1103/PhysRevA.69.022305
PACS:
03.67.-a, 03.65.Ud
See AlsoErratum: Emilio Santos, Erratum: “Entropy inequalities and Bell inequalities for two-qubit systems” [Phys. Rev. A 69, 022305 (2004)], Phys. Rev. A 70, 059901 (2004). |
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