Heralded Single Photon Source-Based Decoy-State Quantum Key Distribution with Dual Detectors

被引：2
|
作者：
Feng, Yu [1 ]
Lee, Seounghun [1 ]
Kim, Semin [1 ]
Kim, Seunghwan [1 ]
Kim, Kyonghon [1 ]
机构：
[1] Inha Univ, Dept Phys, Inchon 402751, South Korea
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2010年 / 49卷 / 05期
关键词：
INGAAS/INP AVALANCHE PHOTODIODE; UNCONDITIONAL SECURITY; CRYPTOGRAPHY; WAVELENGTHS;
D O I：
10.1143/JJAP.49.054401
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In practical quantum key distribution (QKD) systems, the heralded single photon source (HSPS) based on parametric down-conversion (PDC) has attracted significant attentions from many researchers because its various advantages compared to the weak coherent source. We propose a heralded single photon source-based decoy-state QKD with dual detectors and demonstrate in a theoretical simulation that this method improves the performance of QKD system. The secure key generation rate is increased significantly with our proposal both in thermal and Poisson distributions of photons. The secure key rate produced by our scheme is higher than the state of the art key rate of current high-speed QKD system. The decoy-state QKD system using the heralded single photon source with dual detectors can be an important alternative for the present practical QKD systems. (C) 2010 The Japan Society of Applied Physics
引用
收藏
页码：0544011 / 0544015
页数：5
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