4 papers · 1 filter
Uncertainty relations on the slit and Fisher information
Z. Hradil, J. Rehacek
Diffraction on the slit can be interpreted in accordance with the Heisenberg uncertainty principle. This elementary example hints at the importance of the information theory for th…
Comment on "Maximum likelihood reconstruction of CP maps", quant-ph/0009104
Jaromir Fiurasek, Zdenek Hradil
The treatment proposed by Sacchi quant-ph/0009104 does not represent correct solution, since the necessary conditions on CP maps are not guaranteed.
Measurement of quantum devices
Jaromir Fiurasek, Zdenek Hradil
Maximum-likelihood estimation is applied to identification of an unknown quantum mechanical process represented by a ``black box''. In contrast to linear reconstruction schemes the…
Reconstruction of diagonal elements of density matrix using maximum likelihood estimation
Z. Hradil, R. Myska
The data of the experiment of Schiller et al., Phys. Rev. Lett. 77 (1996) 2933, are alternatively evaluated using the maximum likelihood estimation. The given data are fitted bette…