Experimental Realization of Optimal Noise Estimation for a General Pauli Channel

Details Experimental Realization of Optimal Noise Estimation for a General Pauli Channel Experimental Realization of Optimal Noise Estimation for a General Pauli Channel

2011-07-05

arxiv.org/abs/1107.0888v2

Phys. Rev. Lett. 107, 253602 (2011)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevLett.107.253602

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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