We demonstrate experimentally the possibility of efficiently detecting properties of quantum channels and quantum gates. The experimentally realized quantum channel detection method has been recently proposed theoretically, and allows us to characterize the properties of quantum channels with a much smaller experimental effort than quantum process tomography. Here, the optimal detection scheme is first achieved for nonentanglement breaking channels of the depolarizing form and is based on the generation and detection of polarized entangled photons. We then demonstrate channel detection for nonseparable maps by considering the CNOT gate and employing two-photon hyperentangled states.

Experimental Detection of Quantum Channels / Orieux, Adeline; Linda, Sansoni; Mauro, Persechino; Mataloni, Paolo; Matteo, Rossi; Chiara, Macchiavello. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 111:22(2013). [10.1103/physrevlett.111.220501]

Experimental Detection of Quantum Channels

ORIEUX, ADELINE;MATALONI, Paolo;
2013

Abstract

We demonstrate experimentally the possibility of efficiently detecting properties of quantum channels and quantum gates. The experimentally realized quantum channel detection method has been recently proposed theoretically, and allows us to characterize the properties of quantum channels with a much smaller experimental effort than quantum process tomography. Here, the optimal detection scheme is first achieved for nonentanglement breaking channels of the depolarizing form and is based on the generation and detection of polarized entangled photons. We then demonstrate channel detection for nonseparable maps by considering the CNOT gate and employing two-photon hyperentangled states.
2013
01 Pubblicazione su rivista::01a Articolo in rivista
Experimental Detection of Quantum Channels / Orieux, Adeline; Linda, Sansoni; Mauro, Persechino; Mataloni, Paolo; Matteo, Rossi; Chiara, Macchiavello. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 111:22(2013). [10.1103/physrevlett.111.220501]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/558500
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