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Quantum control

Squinting at quantum systems

Nature volume 470, pages 178–179 (2011)Cite this article

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Quantum measurements always have a back-action: they 'kick' the system in a particular way. This can be used to drive the system to any desired state using a fixed type of measurement, provided it can be 'unsharpened'.

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Figure 1: Sharp and unsharp measurements.

References

  1. Ashhab, S. & Nori, F. Phys. Rev. A 82, 062103 (2010).

    Article  ADS  Google Scholar 

  2. Pechen, A., Il'in, N., Shuang, F. & Rabitz, H. Phys. Rev. A 74, 052102 (2006).

    Article  ADS  Google Scholar 

  3. Jacobs, K. New J. Phys. 12, 043005 (2010).

    Article  ADS  Google Scholar 

  4. Wiseman, H. M. & Milburn, G. J. Quantum Measurement and Control (Cambridge Univ. Press, 2010).

    MATH  Google Scholar 

  5. Banaszek, K. Phys. Rev. Lett. 86, 1366–1369 (2001).

    Article  ADS  CAS  Google Scholar 

  6. Renes, J. M., Blume-Kohout, R., Scott, A. J. & Caves, C. M. J. Math. Phys. 45, 2171–2180 (2004).

    Article  ADS  MathSciNet  Google Scholar 

  7. Wiseman, H. M. & Thomsen, L. K. Phys. Rev. Lett. 86, 1143–1147 (2001).

    Article  ADS  CAS  Google Scholar 

  8. Gillett, G. et al. Phys. Rev. Lett. 104, 080503 (2010).

    Article  ADS  CAS  Google Scholar 

Download references

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Authors and Affiliations

  1. Howard M. Wiseman is at the Centre for Quantum Computation and Communication Technology (Australian Research Council), and the Centre for Quantum Dynamics, Griffith University, Nathan, Queensland 4111, Australia.,

    Howard M. Wiseman

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  1. Howard M. Wiseman
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Correspondence to Howard M. Wiseman.

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Wiseman, H. Squinting at quantum systems. Nature 470, 178–179 (2011). https://doi.org/10.1038/470178a

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