Demonstrating Heisenberg-limited unambiguous phase estimation without adaptive measurements

@article{Higgins2009DemonstratingHU,
  title={Demonstrating Heisenberg-limited unambiguous phase estimation without adaptive measurements},
  author={Betty Higgins and Dominic W. Berry and Stephen D. Bartlett and Morgan W. Mitchell and Howard Mark Wiseman and Geoff J Pryde},
  journal={New Journal of Physics},
  year={2009},
  volume={11},
  pages={073023}
}
  • Betty Higgins, Dominic W. Berry, +3 authors Geoff J Pryde
  • Published 2009
  • Physics
  • New Journal of Physics
  • We derive, and experimentally demonstrate, an interferometric scheme for unambiguous phase estimation with precision scaling at the Heisenberg limit that does not require adaptive measurements. That is, with no prior knowledge of the phase, we can obtain an estimate of the phase with a standard deviation that is only a small constant factor larger than the minimum physically allowed value. Our scheme resolves the phase ambiguity that exists when multiple passes through a phase shift, or NOON… CONTINUE READING

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