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Experimental demonstration of optimal universal asymmetric quantum cloning of polarization states of single photons by partial symmetrization
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SYSNO ASEP 0337318 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Experimental demonstration of optimal universal asymmetric quantum cloning of polarization states of single photons by partial symmetrization Title Experimentální realizace optimálního univerzálního asymetrického kvantového klonování polarizačních stavů pomocí částečné symetrizace Author(s) Černoch, Antonín (FZU-D) RID, ORCID
Soubusta, Jan (FZU-D) RID, ORCID
Čelechovská, L. (CZ)
Dušek, M. (CZ)
Fiurášek, J. (CZ)Source Title Physical Review. A. - : American Physical Society - ISSN 1050-2947
Roč. 80, č. 6 (2009), 062306/1-062306/6Number of pages 6 s. Language eng - English Country US - United States Keywords kvantová informace ; asymetrické klonování ; částečná symetrizace quantum information ; asymmetric cloning ; partial symmetrization Subject RIV BH - Optics, Masers, Lasers R&D Projects 1M06002 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100522 - FZU-D (2005-2011) UT WOS 000273233800038 DOI 10.1103/PhysRevA.80.062306 Annotation 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. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
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