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Quantum inference of states and processes

Miroslav Jezek·Jaromir Fiurasek·Zdenek Hradil
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Abstract

The maximum-likelihood principle unifies inference of quantum states and processes from experimental noisy data. Particularly, a generic quantum process may be estimated simultaneously with unknown quantum probe states provided that measurements on probe and transformed probe states are available. Drawbacks of various approximate treatments are considered.

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Miroslav Jezek, Jaromir Fiurasek, Zdenek Hradil. 2002-10-24. Quantum inference of states and processes. https://doi.org/10.1103/physreva.68.012305

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