Universal Algorithm for Optimal Estimation of Quantum States from Finite Ensembles

Universal Algorithm for Optimal Estimation of Quantum States from Finite Ensembles

We present a universal algorithm for the optimal quantum state estimation of an arbitrary finite dimensional system. The algorithm specifies a physically realizable positive operator valued measurement (POVM) on a finite number of identically prepared systems. We illustrate the general formalism by...

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Bibliographic Details
Main Authors: Derka, R, Buzek, V, Ekert, A
Format: Journal article
Language:English
Published: 1997
Description
Summary:We present a universal algorithm for the optimal quantum state estimation of an arbitrary finite dimensional system. The algorithm specifies a physically realizable positive operator valued measurement (POVM) on a finite number of identically prepared systems. We illustrate the general formalism by applying it to different scenarios of the state estimation of N independent and identically prepared two-level systems (qubits).

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