Entanglement purification protocols for all graph states

Details Entanglement purification protocols for all graph states Entanglement purification protocols for all graph states

2006-06-09

arxiv.org/abs/quant-ph/0606090v2

Phys. Rev. A 74, 052316 (2006)

Physics

Quantum Physics

revtex 10 pages, 6 figures

Scientific paper

10.1103/PhysRevA.74.052316

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.

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