Experimental Detection of Quantum Channels

Abstract

We demonstrate experimentally the possibility of efficiently detecting properties of quantum channels and quantum gates. The optimal detection scheme is first achieved for non entanglement breaking channels of the depolarizing form and is based on the generation and detection of polarized entangled photons. We then demonstrate channel detection for non separable maps by considering the CNOT gate and employing two-photon hyperentangled states.

8 pages, 9 figures

References in corpus (4)

• Experimental Realization of Optimal Noise Estimation for a General Pauli Channel
• Quantum channel detection
• Quantifying the noise of a quantum channel by noise addition
• Noise robustness in the detection of non separable random unitary maps

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• Mixed-state certification of quantum capacities for noisy communication channels
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• Experimental Lower Bounds to the Classical Capacity of Quantum Channels
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• Non-Markovianity and entanglement detection
• End-to-end entanglement of quantum network paths with multi-parameter states