Deterministic six states protocol for quantum communication |
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| Affiliation: | 1. Faculty of Science, International Islamic University of Malaysia (IIUM), Jalan Gombak, 53100 Kuala Lumpur, Malaysia;2. Cyberspace Security Laboratory, MIMOS Berhad, Technology Park Malaysia, 57000 Kuala Lumpur, Malaysia |
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| Abstract: | We consider a two-way deterministic protocol for quantum communication using six mutually unbiased states in the Poincaré sphere. The logical information is encoded by flip or not-flip operations on the states. Despite the nonexistence of a universal flip gate the protocol saturates the bound of a unitary efficiency. Three eavesdropping strategies are analyzed suggesting better probabilities of detecting an unauthorized adversary. |
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