Документ взят из кэша поисковой машины. Адрес оригинального документа : http://qi.phys.msu.ru/en/papers/57/
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Publications :: Quantum Information Laboratory
Quantum Information Laboratory

Quantum Information and Quantum Optics Laboratory

Publications

KSRHHK-EABT-13
K.љS.љKravtsov, S.љS.љStraupe, I.љV.љRadchenko, N.љM.љT.љHoulsby, F.љHusz?r and S.љP.љKulik,
?Experimental adaptive Bayesian tomography?,
Phys. Rev. A, 87(6), 062122 (2013).

Abstract:
We report an experimental realization of an adaptive quantum state tomography protocol. Our method takes advantage of a Bayesian approach to statistical inference and is naturally tailored for adaptive strategies. For pure states, we observe close to N^{?1} scaling of infidelity with overall number of registered events, while the best nonadaptive protocols allow for N^{?1/2} scaling only. Experiments are performed for polarization qubits, but the approach is readily adapted to any dimension.


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