We present the experimental realization of the optimal estimation protocol for a Pauli noisy channel. The method is based on the generation of 2-qubit Bell states and the introduction of quantum noise in a controlled way on one of the state subsystems. The efficiency of the optimal estimation, achieved by a Bell measurement, is shown to outperform quantum process tomography.

Experimental Realization of Optimal Noise Estimation for a General Pauli Channel / A., Chiuri; V., Rosati; G., Vallone; S., Padua; H., Imai; S., Giacomini; C., Macchiavello; Mataloni, Paolo. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 107:25(2011), pp. 253602-1-253602-5. [10.1103/physrevlett.107.253602]

Experimental Realization of Optimal Noise Estimation for a General Pauli Channel

MATALONI, Paolo
2011

Abstract

We present the experimental realization of the optimal estimation protocol for a Pauli noisy channel. The method is based on the generation of 2-qubit Bell states and the introduction of quantum noise in a controlled way on one of the state subsystems. The efficiency of the optimal estimation, achieved by a Bell measurement, is shown to outperform quantum process tomography.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/465459
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