High-fidelity Greenberger-Horne-Zeilinger state generation within nearby nodes

Journal article (2019)

Authors

V. Caprara Vivoli QuTech Advanced Research Centre, QID/Wehner Group - QuTech Advanced Research Centre
J.D. Ribeiro QuTech Advanced Research Centre, QID/Wehner Group - QuTech Advanced Research Centre
S.D.C. Wehner Quantum Information and Software - EEMCS , QuTech Advanced Research Centre, Quantum Internet Division
Research Group
QID/Wehner Group (QuTech Advanced Research Centre) (TU Delft)
Copyright: © 2019 V. Caprara Vivoli, J.D. Ribeiro, S.D.C. Wehner
DOI: https://doi.org/10.1103/PhysRevA.100.032310
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Published Date

2019

Language

English

Faculty

QuTech Advanced Research Centre

Department

Quantum Internet Division

Research Group

QID/Wehner Group

Abstract

Generating entanglement in a distributed scenario is a fundamental task for implementing the quantum network of the future. We here report a protocol that uses only linear optics for generating Greenberger-Horne-Zeilinger states with high fidelities in a nearby node configuration. Moreover, we analytically show that the scheme is optimal for certain initial states in providing the highest success probability for sequential protocols. Finally, we give some estimates for the generation rate in a real scenario.