Quantum encoding based on optical phase states and mutually unbiased bases in the presence of several eavesdroppers |
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Authors: | M Daoud H Ez-Zahraouy |
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Institution: | 1. Max Planck Institute for the Physics of Complex Systems, Dresden, Germany 2. Department of Physics, Faculty of Sciences, University Ibn Zohr, Agadir, Morocco 3. LMPHE (URAC), Faculty of Sciences, University Mohammed V, Rabat, Morocco
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Abstract: | We investigate quantum key distribution where information is carried by a d-level optical quantum system. The sender uses the mutually unbiased bases generated from the phase states of the quantum
system. We consider the effects of several intercept and resend attacks. We derive explicitly the mutual information between
the legitimate parties as well as the mutual information between the sender and the different eavesdroppers in the communication
channel. We discuss the security of the cryptographic scheme and present some numerical analysis. |
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Keywords: | |
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