Maximum-likelihood estimation of quantum measurement
arXiv:quant-ph/0101027 · doi:10.1103/PhysRevA.64.024102
Abstract
Maximum likelihood estimation is applied to the determination of an unknown quantum measurement. The measuring apparatus performs measurements on many different quantum states and the positive operator-valued measures governing the measurement statistics are then inferred from the collected data via Maximum-likelihood principle. In contrast to the procedures based on linear inversion, our approach always provides physically sensible result. We illustrate the method on the case of Stern-Gerlach apparatus.
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