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Entanglement purification protocols for all graph states

Journal Article · · Physical Review. A
; ; ;  [1]
  1. Institut fuer Theoretische Physik, Universitaet Innsbruck, Technikerstrasse 25, 6020 Innsbruck (Austria) and Institut fuer Quantenoptik und Quanteninformation der Oesterreichischen Akademie der Wissenschaften, Innsbruck (Austria)
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.
OSTI ID:
20974707
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English

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