Optimal pair generation rate for Entanglement-based QKD
arXiv:1210.0209 · doi:10.1103/PhysRevA.87.022342
Abstract
In entanglement-based quantum key distribution (QKD), the generation and detection of multi-photon modes leads to a trade-off between entanglement visibility and two-fold coincidence events when maximizing the secure key rate (SKR). We produce a predictive model for the optimal two-fold coincidence probability per coincidence window given the channel efficiency and detector dark count rate of a given system. This model is experimentally validated and used in simulations for QKD with satellites as well as optical fibers.
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Cited by in corpus (5)
- Entangled Photon-Pair Sources based on three-wave mixing in bulk crystals
- Strategies for achieving high key rates in satellite-based QKD
- Effect of source statistics on utilizing photon entanglement in quantum key distribution
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