Time-Bin-Encoded Boson Sampling with a Single-Photon Device

Yu He, X. Ding, Z.-E. Su, H.-L. Huang, J. Qin, C. Wang, S. Unsleber, C. Chen, H. Wang, Y.-M. He, X.-L. Wang, W.-J. Zhang, S.-J. Chen, C. Schneider, M. Kamp, L.-X. You, Z. Wang, S. Höfling, Chao-Yang Lu, and Jian-Wei Pan
Phys. Rev. Lett. 118, 190501 – Published 10 May 2017
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Abstract

Boson sampling is a problem strongly believed to be intractable for classical computers, but can be naturally solved on a specialized photonic quantum simulator. Here, we implement the first time-bin-encoded boson sampling using a highly indistinguishable (94%) single-photon source based on a single quantum-dot-micropillar device. The protocol requires only one single-photon source, two detectors, and a loop-based interferometer for an arbitrary number of photons. The single-photon pulse train is time-bin encoded and deterministically injected into an electrically programmable multimode network. The observed three- and four-photon boson sampling rates are 18.8 and 0.2 Hz, respectively, which are more than 100 times faster than previous experiments based on parametric down-conversion.

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  • Received 14 March 2017

DOI:https://doi.org/10.1103/PhysRevLett.118.190501

© 2017 American Physical Society

Physics Subject Headings (PhySH)

General PhysicsQuantum Information, Science & Technology

Authors & Affiliations

Yu He1,2, X. Ding1,2, Z.-E. Su1,2, H.-L. Huang1,2, J. Qin1,2, C. Wang1,2, S. Unsleber3, C. Chen1,2, H. Wang1,2, Y.-M. He1,3, X.-L. Wang1,2, W.-J. Zhang4, S.-J. Chen4, C. Schneider3, M. Kamp3, L.-X. You4, Z. Wang4, S. Höfling1,3,5, Chao-Yang Lu1,2,*, and Jian-Wei Pan1,2,†

  • 1Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
  • 2CAS-Alibaba Quantum Computing Laboratory, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China
  • 3Technische Physik, Physikalisches Instität and Wilhelm Conrad Röntgen-Center for Complex Material Systems, Universitat Würzburg, Am Hubland, D-97074 Wüzburg, Germany
  • 4State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, China
  • 5SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews KY16 9SS, United Kingdom

  • *cylu@ustc.edu.cn
  • pan@ustc.edu.cn

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Issue

Vol. 118, Iss. 19 — 12 May 2017

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