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Quantum information

To compute or not to compute?

Quantum physics aims another blow at common sense: a simple quantum computer gives the right answer, even when it is not run. (Traditionalists be comforted: the computer must be turned on.)

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References

  1. Hosten, O., Rakher, M. T., Barreiro, J. T., Peters, N. A. & Kwiat, P. G. Nature 439, 949–952 (2006).

    Article  ADS  CAS  Google Scholar 

  2. Elitzur, A. C. & Vaidman, L. Found. Phys. 23, 987–997 (1993).

    Article  ADS  Google Scholar 

  3. Mitchison, G. & Jozsa, R. Proc. R. Soc. Lond. A 457, 1175–1193 (2001).

    Article  ADS  Google Scholar 

  4. Kwiat, P. et al. Phys. Rev. Lett. 74, 4763–4766 (1995).

    Article  ADS  CAS  Google Scholar 

  5. Kwiat, P., Weinfurter, H. & Zeilinger, A. Sci. Am. 275(5), 72–78 (1996).

    Article  ADS  CAS  Google Scholar 

  6. Knight, P. Nature 344, 493–494 (1990).

    Article  ADS  Google Scholar 

  7. Grover, L. K. Phys. Rev. Lett. 79, 325–328 (1997).

    Article  ADS  CAS  Google Scholar 

  8. Dowling, J. P. & Milburn, G. J. Phil. Trans. R. Soc. Lond. A 361, 1655–1674 (2003).

    Article  ADS  Google Scholar 

Download references

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Dowling, J. To compute or not to compute?. Nature 439, 919–920 (2006). https://doi.org/10.1038/439919a

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