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Experimental Realization of Optimal Noise Estimation for a General Pauli Channel
Published 5 Jul 2011 in quant-ph | (1107.0888v2)
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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