A frequency-coded quantum key distribution scheme |
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Authors: | Tao Zhang Guang-Can Guo |
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Institution: | Key Laboratory of Quantum Information, University of Science and Technology of China (CAS), Hefei, Anhui 230026, People’s Republic of China |
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Abstract: | A frequency-coded quantum key distribution scheme, what we propose here, is that using encoded qubit in different frequency of a photon in four kinds of states. These states satisfy requirements of BB84 protocol and could be produced with the recent advances in technology. Comparing with the scheme proposed in Bloch et al., Opt. Lett. 32 (2007) 301], our scheme has no intrinsic deficiency that the measurement of one kind of the states will get wrong result with a little probability, and is a perfect BB84 protocol. The characters and feasibility of the scheme are discussed in detail. |
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Keywords: | 03 67 Dd |
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