"Physical Review. A" . "6" . . . "80" . "Experimental demonstration of optimal universal asymmetric quantum cloning of polarization states of single photons by partial symmetrization" . . "RIV/68378271:_____/09:00337318" . . "We report on experimental implementation of the optimal universal asymmetric 1->2 quantum cloning machine for qubits encoded into polarization states of single photons. Our linear optical machine performs asymmetric cloning by partially symmetrizing the input polarization state of signal photon and a blank copy idler photon prepared in a maximally mixed state. We show that the employed method of measurement of mean clone fidelities exhibits strong resilience to imperfect calibration of the relative efficiencies of single-photon detectors used in the experiment. Reliable characterization of the quantum cloner is thus possible even when precise detector calibration is difficult to achieve."@en . "000273233800038" . . "Fiur\u00E1\u0161ek, J." . . "Experimental demonstration of optimal universal asymmetric quantum cloning of polarization states of single photons by partial symmetrization"@en . . . "RIV/68378271:_____/09:00337318!RIV10-MSM-68378271" . "Experimental demonstration of optimal universal asymmetric quantum cloning of polarization states of single photons by partial symmetrization"@en . "314212" . "2"^^ . "kvantov\u00E1 informace; asymetrick\u00E9 klonov\u00E1n\u00ED; \u010D\u00E1ste\u010Dn\u00E1 symetrizace quantum information; asymmetric cloning; partial symmetrization"@en . "\u010Cernoch, Anton\u00EDn" . "6"^^ . "\u010Celechovsk\u00E1, L." . . . . "P(1M06002), Z(AV0Z10100522), Z(MSM6198959213)" . . . "1050-2947" . "5"^^ . "We report on experimental implementation of the optimal universal asymmetric 1->2 quantum cloning machine for qubits encoded into polarization states of single photons. Our linear optical machine performs asymmetric cloning by partially symmetrizing the input polarization state of signal photon and a blank copy idler photon prepared in a maximally mixed state. We show that the employed method of measurement of mean clone fidelities exhibits strong resilience to imperfect calibration of the relative efficiencies of single-photon detectors used in the experiment. Reliable characterization of the quantum cloner is thus possible even when precise detector calibration is difficult to achieve." . . . . "Experimental demonstration of optimal universal asymmetric quantum cloning of polarization states of single photons by partial symmetrization" . . . . "Du\u0161ek, M." . . "Soubusta, Jan" . "[F4FBD20AC4E7]" . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . .