A comparative study of estimation methods in quantum tomography

@inproceedings{Acharya2019ACS,
  title={A comparative study of estimation methods in quantum tomography},
  author={Anirudh B Acharya and Theodore Kypraios and Madalin Guta},
  year={2019}
}
  • Anirudh B Acharya, Theodore Kypraios, Madalin Guta
  • Published 2019
  • Physics, Mathematics
  • As quantum tomography is becoming a key component of the quantum engineering toolbox, there is a need for a deeper understanding of the multitude of estimation methods available. Here we investigate and compare several such methods: maximum likelihood, least squares, generalised least squares, positive least squares, thresholded least squares and projected least squares. The common thread of the analysis is that each estimator projects the measurement data onto a parameter space with respect to… CONTINUE READING

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