Entanglement distillation between solid-state quantum network nodes

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

Research output: Contribution to journalArticleScientificpeer-review

141 Citations (Scopus)
89 Downloads (Pure)

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.

Original languageEnglish
Pages (from-to)928-932
Number of pages5
JournalScience
Volume356
Issue number6341
DOIs
Publication statusPublished - 2017

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