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Quantum Key Distribution Protocol Using Quantum Fourier Transform

Quantum Key Distribution Protocol Using Quantum Fourier Transform A quantum key distribution protocol is proposed base on the discrete quantum Fourier transform. In ourprotocol, we perform Fourier transform on each particle of the sequence to encode the qubits and insert sufficient decoy photons into the sequence for preventing eavesdropping. Furthermore, we prove the security of this protocol with it’s immunization to intercept-measurement attack, intercept-resend attack and entanglement-measurement attack. Then, we analyse the efficiency of the protocol, the efficiency of our protocol is about 25% that higher than many other protocols. Also, the proposed protocol has another advantage that it is completely compatible with quantum computation and more easy to realize in the distributed quantum secure computation.

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