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Non-Gaussian operation based on photon subtraction using a photon-number-resolving detector at a telecommunications wavelength

Nature Photonics volume 4, pages 655–660 (2010)Cite this article

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Abstract

We have implemented non-Gaussian operation in pulsed squeezed vacuum at a telecommunications wavelength. A one- or two-photon-subtracted squeezed state was generated using a titanium superconducting transition-edge sensor to resolve the incident photon number. We observed dips in the reconstructed Wigner functions of the generated quantum states, which provides clear evidence that non-Gaussian operation has been realized.

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Figure 1: Experimental set-up.
Figure 2: Measured Wigner functions and quadrature distributions.
Figure 3: Numerically calculated Wigner functions W(x,p) with different modal purities and overall efficiencies.

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Acknowledgements

The authors thank T. Itatani for providing support regarding TES device fabrication. This research was supported by National Institute of Information and Communication Technology (NICT).

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Authors and Affiliations

  1. Institute of Quantum Science, Nihon University, 1-8-14, Kanda-Surugadai, Chiyoda-ku, 101-8308, Tokyo, Japan

    Naoto Namekata, Yuta Takahashi, Go Fujii & Shuichiro Inoue

  2. Department of Applied Physics, Waseda University, 3-4-1 Okubo, Shinjuku-ku, 169-8555, Tokyo, Japan

    Yuta Takahashi

  3. National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, 305-8568, Ibaraki, Japan

    Go Fujii & Daiji Fukuda

  4. National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Ibaraki, Japan

    Sunao Kurimura

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  1. Naoto Namekata
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  2. Yuta Takahashi
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  3. Go Fujii
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  4. Daiji Fukuda
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  6. Shuichiro Inoue
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Contributions

N.N. and Y.T. contributed equally as first authors. N.N. and Y.T. performed the experiments and analysed the data. G.F. and D.F. fabricated the photon-number-resolving detector based on the Ti-TES. S.K. fabricated the periodically poled lithium niobate adhered-ridge waveguide. S.I. supervised the project. N.N., Y.T. and S.I. contributed to writing the paper.

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Correspondence to Naoto Namekata.

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The authors declare no competing financial interests.

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Namekata, N., Takahashi, Y., Fujii, G. et al. Non-Gaussian operation based on photon subtraction using a photon-number-resolving detector at a telecommunications wavelength. Nature Photon 4, 655–660 (2010). https://doi.org/10.1038/nphoton.2010.158

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  • DOI: https://doi.org/10.1038/nphoton.2010.158

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