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The security of a realistic quantum key distribution setup is the central issue for possible future applications. There is not too much of the security analysis in the literature which is tailored to the existing setups and take into account realistic types of attacks. In this section we provide such an analysis for our setup. As a result we obtain an optimal detector regime for given losses, and provide the security proof for our experimental conditions assuming that Eve has certain, realistically limited power.


Louis Salvail 2001-06-15