Information criteria for efficient quantum state estimation

  title={Information criteria for efficient quantum state estimation},
  author={J. O. S. Yin and Steven J. van Enk},
  journal={Physical Review A},
Recently several more efficient versions of quantum state tomography have been proposed, with the purpose of making tomography feasible even for many-qubit states. The number of state parameters to be estimated is reduced by tentatively introducing certain simplifying assumptions on the form of the quantum state, and subsequently using the data to rigorously verify these assumptions. The simplifying assumptions considered so far were (i) the state can be well approximated to be of low rank, or… Expand

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