Surpassing the no-cloning limit with a heralded hybrid linear amplifier for coherent states

Jing Yan Haw; Jie Zhao; Josephine Dias; Syed M. Assad; Mark Bradshaw; Rémi Blandino; Thomas Symul; Timothy C. Ralph; Ping Koy Lam

doi:10.1038/ncomms13222

Nature Communications (Oct 2016)

Surpassing the no-cloning limit with a heralded hybrid linear amplifier for coherent states

Jing Yan Haw,
Jie Zhao,
Josephine Dias,
Syed M. Assad,
Mark Bradshaw,
Rémi Blandino,
Thomas Symul,
Timothy C. Ralph,
Ping Koy Lam

Affiliations

Jing Yan Haw: Department of Quantum Science, Centre for Quantum Computation and Communication Technology, Research School of Physics and Engineering, The Australian National University
Jie Zhao: Department of Quantum Science, Centre for Quantum Computation and Communication Technology, Research School of Physics and Engineering, The Australian National University
Josephine Dias: Centre for Quantum Computation and Communication Technology, School of Mathematics and Physics, University of Queensland
Syed M. Assad: Department of Quantum Science, Centre for Quantum Computation and Communication Technology, Research School of Physics and Engineering, The Australian National University
Mark Bradshaw: Department of Quantum Science, Centre for Quantum Computation and Communication Technology, Research School of Physics and Engineering, The Australian National University
Rémi Blandino: Centre for Quantum Computation and Communication Technology, School of Mathematics and Physics, University of Queensland
Thomas Symul: Department of Quantum Science, Centre for Quantum Computation and Communication Technology, Research School of Physics and Engineering, The Australian National University
Timothy C. Ralph: Centre for Quantum Computation and Communication Technology, School of Mathematics and Physics, University of Queensland
Ping Koy Lam: Department of Quantum Science, Centre for Quantum Computation and Communication Technology, Research School of Physics and Engineering, The Australian National University

DOI: https://doi.org/10.1038/ncomms13222
Journal volume & issue: Vol. 7, no. 1
pp. 1 – 7

Abstract

Read online

Cloning an unknown quantum state is challenging and the limit on the quality of clones is set by the no-cloning theorem. Here, the authors demonstrated the surpassing of such a limit using an effective quantum cloner based on a hybrid probabilistic-deterministic linear amplifier.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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