Boson Sampling with Single-Photon Fock States from a Bright Solid-State Source

J. C. Loredo, M. A. Broome, P. Hilaire, O. Gazzano, I. Sagnes, A. Lemaitre, M. P. Almeida, P. Senellart, and A. G. White
Phys. Rev. Lett. 118, 130503 – Published 28 March 2017
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Abstract

A boson-sampling device is a quantum machine expected to perform tasks intractable for a classical computer, yet requiring minimal nonclassical resources as compared to full-scale quantum computers. Photonic implementations to date employed sources based on inefficient processes that only simulate heralded single-photon statistics when strongly reducing emission probabilities. Boson sampling with only single-photon input has thus never been realized. Here, we report on a boson-sampling device operated with a bright solid-state source of single-photon Fock states with high photon-number purity: the emission from an efficient and deterministic quantum dot-micropillar system is demultiplexed into three partially indistinguishable single photons, with a single-photon purity 1g(2)(0) of 0.990±0.001, interfering in a linear optics network. Our demultiplexed source is between 1 and 2 orders of magnitude more efficient than current heralded multiphoton sources based on spontaneous parametric down-conversion, allowing us to complete the boson-sampling experiment faster than previous equivalent implementations.

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  • Received 14 March 2016

DOI:https://doi.org/10.1103/PhysRevLett.118.130503

© 2017 American Physical Society

Physics Subject Headings (PhySH)

General PhysicsQuantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

J. C. Loredo1,*, M. A. Broome2, P. Hilaire3,4, O. Gazzano3,5, I. Sagnes3, A. Lemaitre3, M. P. Almeida1, P. Senellart3,6, and A. G. White1

  • 1Centre for Engineered Quantum Systems, Centre for Quantum Computation and Communication Technology, School of Mathematics and Physics, University of Queensland, Brisbane, Queensland 4072, Australia
  • 2Centre of Excellence for Quantum Computation and Communication Technology, School of Physics, University of New South Wales, Sydney, New South Wales 2052, Australia
  • 3CNRS-C2N Centre de Nanosciences et de Nanotechnologies, Université Paris-Sud, Université Paris-Saclay, 91460 Marcoussis, France
  • 4Université Paris Diderot-Paris 7, 75205 Paris CEDEX 13, France
  • 5Joint Quantum Institute, National Institute of Standards and Technology, University of Maryland, Gaithersburg, Maryland 20899, USA
  • 6Département de Physique, Ecole Polytechnique, Université Paris-Saclay, F-91128 Palaiseau, France

  • *Corresponding author. juan.loredo1@gmail.com

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Issue

Vol. 118, Iss. 13 — 31 March 2017

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