Two-mode state reconstruction using photon chopping |
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| Authors: | H. Paul P. Törmä T. Kiss I. Jex |
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| Affiliation: | 1. Arbeitsgruppe ?Nichtklassische Strahlung‘ , Max-Planck-Gesellschaft an der Humboldt Universit?t zu Berlin , Rudower Chaussee 5, 12484, Berlin, Germany;2. Abteilung für Quantenphysik , Universit?t Ulm , D-89069, Ulm, Germany;3. Research Laboratory for Crystal Physics , Hungarian Academy of Sciences , PO Box 132, H-1502, Budapest, Hungary;4. Institute of Physics, SAS, Dúbravská cesta 9, 842 28 Bratislava, Slovakia, and Department of Physics, FNSPE (Faculty of Nuclear Science and Physical Engineering) , Czech Technical University , B?ehová 7, 115 19, Praha, 1, Czech Republic |
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| Abstract: | Abstract The reconstruction of the complete quantum state of a pure-state two-mode field is shown to be possible by the photon-chopping method, that is, by spreading the signal with balanced multiports over an array of detectors and by measuring coincidences. In particular, correlations between the two modes can be detected with high efficiency. |
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