11 January 2005 Single-photon acquisition probability for free-space quantum key distribution
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Two theoretical models of single-photon acquisition probability based on the fundamental-mode Gaussian beam are established for free-space quantum key distribution and are compared in theory and simulation. The parameters that influence the single-photon acquisition probability are the transmitter's tracking-pointing error, the far-field divergence angle, the link distance between the transmitter and receiver and the receiver's antenna aperture. The single-photon acquisition probability is analyzed in the numerical simulation and its orders of magnitude are given for the ground-to-ground, satellite-to-ground and satellite-to-satellite links. The results of the theoretical analysis and the numerical simulation show that it is feasible to acquire single-photon for the satellite-to-ground and satellite-to-satellite quantum key distribution.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Guangyu Zhang, Guangyu Zhang, Jing Ma, Jing Ma, Liying Tan, Liying Tan, Siyuan Yu, Siyuan Yu, Qiqi Han, Qiqi Han, Yunliang Chen, Yunliang Chen, "Single-photon acquisition probability for free-space quantum key distribution", Proc. SPIE 5631, Quantum Optics and Applications in Computing and Communications II, (11 January 2005); doi: 10.1117/12.566152; https://doi.org/10.1117/12.566152


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