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Reconstruction of the polarization states of a biphoton field |
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| Authors: | Yu. I. Bogdanov R. F. Galeev S. P. Kulik G. A. Maslennikov E. V. Moreva |
| Affiliation: | (1) Institute of Physics and Technology, Russian Academy of Sciences, Nakhimovskii pr. 34, Moscow, 117218, Russia;(2) Faculty of Physics, Moscow State University, Vorob’evy gory, Moscow, 119899, Russia;(3) Moscow Engineering Physics Institute (State University), Kashirskoe sh. 31, Moscow, 115409, Russia |
| Abstract: | A method for reconstructing an arbitrary quantum state of an optical system in Hilbert space with dimension d = 4 is discussed. Such states can be realized using a collinear frequency-nondegenerate regime of generating spontaneous parametric down-conversion. The method has been tested for a number of polarization states of a biphoton field. The high accuracy of the reconstruction of the states (above 99%) indicates that the procedures proposed for reconstructing the quantum state of the system are adequate. |
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