An iterative algorithm for the reconstruction of an unknown quantum state from the results of incompatible measurements is proposed. It consists of Expectation-Maximization step followed by a unitary transformation of the eigenbasis of the density matrix. The procedure has been applied to the reconstruction of the entangled pair of photons.
@article{arxiv.quant-ph/0009093,
title = {Iterative algorithm for reconstruction of entangled states},
author = {J. Rehacek and Z. Hradil and M. Jezek},
journal= {arXiv preprint arXiv:quant-ph/0009093},
year = {2009}
}
Comments
4 pages, no figures, some formulations changed, a minor mistake corrected