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Author Cernoch, Antonin ♦ Soubusta, Jan ♦ Celechovska, Lucie ♦ Dusek, Miloslav ♦ Fiurasek, Jaromir
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2009-11-06
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword Quantum Physics ♦ physics:quant-ph
Abstract 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.
Description Reference: Phys. Rev. A 80, 062306 (2009).
Educational Use Research
Learning Resource Type Article
Page Count 6


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