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Boson sampling with single-photon fock states from a bright solid-state source
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Loredo, J. C., Broome, M. A., Hilaire, P., Gazzano, O., Sagnes, I., Lemaitre, A., Almeida, M. P., Senellart, P. and White, A. G. (2017) Boson sampling with single-photon fock states from a bright solid-state source. Physical Review Letters, 118 (13). 130503. doi:10.1103/PhysRevLett.118.130503 ISSN 0031-9007.
An open access version can be found in:
Official URL: http://dx.doi.org/10.1103/PhysRevLett.118.130503
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 1−g(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.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QC Physics | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Journal or Publication Title: | Physical Review Letters | ||||||||
Publisher: | American Physical Society | ||||||||
ISSN: | 0031-9007 | ||||||||
Official Date: | 31 March 2017 | ||||||||
Dates: |
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Volume: | 118 | ||||||||
Number: | 13 | ||||||||
Article Number: | 130503 | ||||||||
DOI: | 10.1103/PhysRevLett.118.130503 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Open Access Version: |
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