Entanglement distillation between solid-state quantum network nodes

Journal article (2017)

Authors

N. Kalb Kavli institute of nanoscience Delft, QuTech Advanced Research Centre, QID/Hanson Lab - QuTech Advanced Research Centre
A.A. Reiserer QID/Hanson Lab - QuTech Advanced Research Centre , Kavli institute of nanoscience Delft, QuTech Advanced Research Centre
P.C. Humphreys Kavli institute of nanoscience Delft, QID/Hanson Lab - QuTech Advanced Research Centre , QuTech Advanced Research Centre
J.J.W. Bakermans QID/Hanson Lab - QuTech Advanced Research Centre , Kavli institute of nanoscience Delft, QuTech Advanced Research Centre
S. J. Kamerling Kavli institute of nanoscience Delft, Student
N. H. Nickerson Imperial College London
S. C. Benjamin University of Oxford
D. J. Twitchen Element Six Innovation
M. Markham Element Six Innovation
R. Hanson QID/Hanson Lab - QuTech Advanced Research Centre , Kavli institute of nanoscience Delft, QuTech Advanced Research Centre
Research Group
QID/Hanson Lab (QuTech Advanced Research Centre) (TU Delft)
Copyright: © 2017 N. Kalb, A.A. Reiserer, P.C. Humphreys, J.J.W. Bakermans, S. J. Kamerling, N. H. Nickerson, S. C. Benjamin, Daniel J. Twitchen, M Markham, R. Hanson
DOI: https://doi.org/10.1126/science.aan0070
More Info
expand_more

Published Date

2017

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

QuTech Advanced Research Centre

Department

Quantum Internet Division

Research Group

QID/Hanson Lab

Abstract

The impact of future quantum networks hinges on high-quality quantum entanglement shared between network nodes. Unavoidable imperfections necessitate a means to improve remote entanglement by local quantum operations. We realize entanglement distillation on a quantum network primitive of distant electron-nuclear two-qubit nodes. The heralded generation of two copies of a remote entangled state is demonstrated through single-photon-mediated entangling of the electrons and robust storage in the nuclear spins. After applying local two-qubit gates, single-shot measurements herald the distillation of an entangled state with increased fidelity that is available for further use. The key combination of generating, storing, and processing entangled states should enable the exploration of multiparticle entanglement on an extended quantum network.