2014
DOI: 10.1103/physreva.89.064301
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Entanglement swapping forXstates demands threshold values

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Cited by 18 publications
(30 citation statements)
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“…The normalization constants are given by N [17], however, their results are found by projecting onto a different set of modes than ours.…”
Section: Acknowledgmentsmentioning
confidence: 74%
See 1 more Smart Citation
“…The normalization constants are given by N [17], however, their results are found by projecting onto a different set of modes than ours.…”
Section: Acknowledgmentsmentioning
confidence: 74%
“…In any experimental implementation the generated entangled quantum states are not necessarily perfect and, in fact, could be further degraded by transmission through the communication channels. Entanglement swapping of certain classes of degraded states were considered recently [13][14][15][16][17]. However, the nature of the intrinsic imperfections of any quantum network and the exact decoherence mechanism of the transmission channel itself are implementation dependent [18][19][20][21].…”
Section: Introductionmentioning
confidence: 99%
“…The matrix ρ X has unit trace and is nonnegative if ρ 22 ρ 33 ≥ |ρ 23 | 2 and ρ 11 ρ 44 ≥ |ρ 14 | 2 hold. In [19], the conditions to have the entanglement are given by the following inequalities:…”
Section: The X-state For a Single Quditmentioning
confidence: 99%
“…We study the properties of the new purity inequalities on an example of the X-states [16]. We show the relation of the purity inequalities obtained with the entanglement on an example of the single-qudit Gisin [17], Werner [18], and β [19] states. The purity inequality we discussed here can be connected with the inequalities for eigenvalues found in [20,21].…”
Section: Introductionmentioning
confidence: 99%
“…The red line corresponds to where the optimal measurement is σ z and the quantum discord is determined through calculating Eq. (27). The green line corresponds to where the optimal measurement is σ x and the quantum discord is determined through calculating Eq.…”
Section: States With Symmetriesmentioning
confidence: 99%