Experimental joint quantum measurements with minimum uncertainty.

@article{Ringbauer2014ExperimentalJQ,
  title={Experimental joint quantum measurements with minimum uncertainty.},
  author={M. Ringbauer and D. Biggerstaff and M. Broome and A. Fedrizzi and C. Branciard and A. White},
  journal={Physical review letters},
  year={2014},
  volume={112 2},
  pages={
          020401
        }
}
  • M. Ringbauer, D. Biggerstaff, +3 authors A. White
  • Published 2014
  • Physics, Medicine
  • Physical review letters
  • Quantum physics constrains the accuracy of joint measurements of incompatible observables. Here we test tight measurement-uncertainty relations using single photons. We implement two independent, idealized uncertainty-estimation methods, the three-state method and the weak-measurement method, and adapt them to realistic experimental conditions. Exceptional quantum state fidelities of up to 0.999 98(6) allow us to verge upon the fundamental limits of measurement uncertainty. 

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