Entanglement purification protocols for all graph states
arXiv:quant-ph/0606090 · doi:10.1103/PhysRevA.74.052316
Abstract
We present multiparty entanglement purification protocols that are capable of purifying arbitrary graph states directly. We develop recurrence and breeding protocols and compare our methods with strategies based on bipartite entanglement purification in static and communication scenarios. We find that direct multiparty purification is of advantage with respect to achievable yields and minimal required fidelity in static scenarios, and with respect to obtainable fidelity in the case of noisy operations in both scenarios.
revtex 10 pages, 6 figures
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