Universal Algorithm for Optimal Estimation of Quantum States from Finite Ensembles

Details Universal Algorithm for Optimal Estimation of Quantum States from Finite Ensembles Universal Algorithm for Optimal Estimation of Quantum States from Finite Ensembles

1997-07-14

arxiv.org/abs/quant-ph/9707028v2

Phys.Rev.Lett. 80 (1998) 1571-1575

Physics

Quantum Physics

4 pages, RevTeX, minor modifications to the text

Scientific paper

10.1103/PhysRevLett.80.1571

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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