物理学报2011，Vol.60Issue(3)：56-60,5.
基于两种光源的诱发态量子密钥分配性能分析
Performance analysis of decoy state quantum key distribution using two kinds of photon sources
摘要
Abstract
Since the single photon is easy to attenuate and be disturbed, its key generation rate and transmission distance in quantum communication systems are generally limited. In contrast, weak coherent pulse (WCP) and heralded single photon source (HSPS) exhibit higher feasibility than the single photon source in quantum key distributions (QKD). We compare the performances of QKD using these two kinds of photon sources and decoy state method, incorporating datapostprocessing methods including the Lǖtkenhaus scheme and Gottesman-Lo-Lǖtkenhaus- Preskill (GLLP) scheme.Simulation results indicate that QKD using HSPS can transmit longer distance than using WCP with lower overall quantum bit error rate (QBER) at the same transmission distance, albeit with relatively low key generation rate.关键词
量子密钥分配/诱发态/WCP光源/HSPS光源Key words
quantum key distribution/ decoy state/ weak coherent pulse/ heralded single photon source引用本文复制引用
王涵,闫连山,潘炜,罗斌,郭振,徐明峰..基于两种光源的诱发态量子密钥分配性能分析[J].物理学报,2011,60(3):56-60,5.基金项目
国家自然科学基金(批准号:60972003)和教育部新世纪优秀人才资助项目(批准号:NCET-08-0821)资助的课题. （批准号:60972003）
