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A balanced homodyne detector for high-rate Gaussian-modulated coherent-state quantum key distribution
Yue-Meng Chi, Bing Qi, Wen Zhu +5
We discuss excess noise contributions of a practical balanced homodyne detector in Gaussian-modulated coherent-state (GMCS) quantum key distribution (QKD). We point out the key gen…
Feasibility of quantum key distribution through dense wavelength division multiplexing network
Bing Qi, Wen Zhu, Li Qian +1
In this paper, we study the feasibility of conducting quantum key distribution (QKD) together with classical communication through the same optical fiber by employing dense-wavelen…
Experimental demonstration of phase-remapping attack in a practical quantum key distribution system
Feihu Xu, Bing Qi, Hoi-Kwong Lo
Unconditional security proofs of various quantum key distribution (QKD) protocols are built on idealized assumptions. One key assumption is: the sender (Alice) can prepare the requ…
Security of high speed quantum key distribution with finite detector dead time
Viacheslav Burenkov, Bing Qi, Ben Fortescue +1
The security of a high speed quantum key distribution system with finite detector dead time τ is analyzed. When the transmission rate becomes higher than the maximum count rate of…