Quantum state estimation

Zdenek Hradil

doi:10.1103/PhysRevA.55.R1561

Quantum state estimation

Quantum Physics 2009-10-30 v1

Authors: Zdenek Hradil

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Abstract

New algorithm for quantum state estimation based on the maximum likelihood estimation is proposed. Existing techniques for state reconstruction based on the inversion of measured data are shown to be overestimated since they do not guarantee the positive definiteness of the reconstructed density matrix.

Keywords

quantum tomography quantum state discrimination quantum state space

Cite

@article{arxiv.quant-ph/9609012,
  title  = {Quantum state estimation},
  author = {Zdenek Hradil},
  journal= {arXiv preprint arXiv:quant-ph/9609012},
  year   = {2009}
}

Comments

4 pages, twocolumn Revtex

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