Estimating mixed quantum states

Dietmar G. Fischer; Matthias Freyberger

doi:10.1016/S0375-9601(00)00513-2

Estimating mixed quantum states

Quantum Physics 2009-11-06 v2

Authors: Dietmar G. Fischer , Matthias Freyberger

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Abstract

We discuss single adaptive measurements for the estimation of mixed quantum states of qubits. The results are compared to the optimal estimation schemes using collective measurements. We also demonstrate that the advantage of collective measurements increases when the degree of mixing of the quantum states increases.

Keywords

quantum tomography quantum measurement quantum state discrimination

Cite

@article{arxiv.quant-ph/0005090,
  title  = {Estimating mixed quantum states},
  author = {Dietmar G. Fischer and Matthias Freyberger},
  journal= {arXiv preprint arXiv:quant-ph/0005090},
  year   = {2009}
}

Comments

RevTeX, 7 pages, 4 figures

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