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Iterative algorithm for reconstruction of entangled states

J. Rehacek·Z. Hradil·M. Jezek
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Abstract

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.

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J. Rehacek, Z. Hradil, M. Jezek. 2000-10-03. Iterative algorithm for reconstruction of entangled states. https://doi.org/10.1103/physreva.63.040303

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