论文信息 - Quantum key distribution without a single-photon source using a strong reference

Quantum key distribution without a single-photon source using a strong reference

We present a single-sideband scheme that uses an enhanced BB84 protocol with a strong reference. A matrix method allows us to prove that this reference makes the system secure against the photon number splitting attack when using an imperfect laser source. The performance of a stable experimental setup with a fainted laser source is tested using an optimum average energy /spl mu/=1 photon per pulse to maximize the final key rate.

J.-M. Merolla | S.W. McLaughlin | O.L. Guerreau | F.J. Malassenet

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