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Proceedings Paper

Preparation of arbitrary qutrit state based on biphotons
Author(s): Yu. Bogdanov; M. Chekhova; S. Kulik; G. Maslennikov; C. H. Oh; M. K. Tey
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Paper Abstract

The novel experimental realization of three-state optical quantum systems is presented. We use the polarization state of biphotons in single frequency- and spatial mode to generate an arbitrary qutrits. In particular the specific sequence of states that are used in the extended version of BB84 quantum key distribution protocol was generated and tested. We experimentally verify the orthogonality of the 12 basic states and demonstrate the ability of switching between them. The tomography procedure is applied to reconstruct the density matrices of generated states.

Paper Details

Date Published: 1 June 2005
PDF: 11 pages
Proc. SPIE 5833, Quantum Informatics 2004, (1 June 2005); doi: 10.1117/12.620494
Show Author Affiliations
Yu. Bogdanov, FTIAN (Russia)
M. Chekhova, M.V. Lomonosov Moscow State Univ. (Russia)
S. Kulik, M.V. Lomonosov Moscow State Univ. (Russia)
G. Maslennikov, M.V. Lomonosov Moscow State Univ. (Russia)
C. H. Oh, National Univ. of Singapore (Singapore)
M. K. Tey, National Univ. of Singapore (Singapore)

Published in SPIE Proceedings Vol. 5833:
Quantum Informatics 2004
Yuri I. Ozhigov, Editor(s)

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