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Optical physics

A larger quantum alphabet

Quantum objects that can hold more information than quantum bits have been generated and manipulated in an integrated photonic platform, paving the way for advanced protocols in quantum information processing. See Letter p.622

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Figure 1: Generation of entangled photons for the multilevel encoding of information.

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References

  1. Kues, M. et al. Nature 546, 622–626 (2017).

    Article  ADS  CAS  Google Scholar 

  2. Ladd, T. D. et al. Nature 464, 45–53 (2010).

    Article  ADS  CAS  Google Scholar 

  3. O'Brien, J. L., Furusawa, A. & Vučković, J. Nature Photon. 3, 687–695 (2009).

    Article  ADS  CAS  Google Scholar 

  4. Tanzilli, S. et al. Laser Photon. Rev. 6, 115–143 (2012).

    Article  ADS  Google Scholar 

  5. Giovannetti, V., Lloyd, S. & Maccone, L. Science 306, 1330–1336 (2004).

    Article  ADS  CAS  Google Scholar 

  6. Ursin, R. et al. Nature Phys. 3, 481–486 (2007).

    Article  ADS  CAS  Google Scholar 

  7. Schaeff, C., Polster, R., Huber, M., Ramelow, S. & Zeilinger, A. Optica 2, 523–529 (2015).

    Article  ADS  Google Scholar 

  8. Thew, R., Acin, A., Zbinden, H. & Gisin, N. Quantum Inf. Comput. 4, 93–101 (2004).

    MathSciNet  Google Scholar 

  9. Somaschi, N. et al. Nature Photon. 10, 340–345 (2016).

    Article  ADS  CAS  Google Scholar 

Download references

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Correspondence to Roberto Osellame.

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Osellame, R. A larger quantum alphabet. Nature 546, 602–603 (2017). https://doi.org/10.1038/546602a

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