Observable entities in quantum-optics networks |
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| Authors: | S. Stenholm |
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| Affiliation: | (1) Research Institute for Theoretical Physics and the Academy of Finland, University of Helsinki, Siltavuorenpenger 20C, P.O. Box 9, FIN-00014, Finland |
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| Abstract: | We consider the quantum analogue of the classical Jones calculus for passive linear optical systems. Those points of the theory where quantum features have to be manifestly included are discussed. The use of different quasidistribution functions and their restrictions to the observable variables only is presented. The consistency of the theory and its usefulness are discussed.Dedicated to H. Walther on the occasion of his 60th birthday |
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| Keywords: | 42.50.-p 42.50.Lc 03.65.Bz |
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