Yang Liu;Teng Yun Chen;Jian Wang;Wen Qi Cai;Xu Wan;Luo Kan Chen;Jin Hong Wang;Shu Bin Liu;Hao Liang;林 杨;承志 彭;Kai Chen;增兵 陈;建伟 潘
University of Science and Technology of China;China Association for Science and Technology
发表时间:2010-4-12
期 刊:Optics Express
语 言:English
U R L: http://www.scopus.com/inward/record.url?scp=77950885220&partnerID=8YFLogxK
We report an implementation of decoy-state quantum key distribution (QKD) over 200 km optical fiber cable through photon polarization encoding. This is achieved by constructing the whole QKD system operating at 320 MHz repetition rate, and developing high-speed transmitter and receiver modules. A novel and economic way of synchronization method is designed and incorporated into the system, which allows to work at a low frequency of 40kHz and removes the use of highly precise clock. A final key rate of 15 Hz is distributed within the experimental time of 3089 seconds, by using super-conducting single photon detectors. This is longest decoy-state QKD yet demonstrated up to date. It helps to make a significant step towards practical secure communication in long-distance scope.
Scopus度量
年份 | CiteScore | SJR | SNIP |
---|---|---|---|
1996 | |||
1997 | |||
1998 | |||
1999 | 1.442 | 0.911 | |
2000 | 1.222 | 0.75 | |
2001 | 1.496 | 1.422 | |
2002 | 1.63 | 1.768 | |
2003 | 2.669 | 2.232 | |
2004 | 2.819 | 2.464 | |
2005 | 3.313 | 2.328 | |
2006 | 3.235 | 2.363 | |
2007 | 3.284 | 2.059 | |
2008 | 3.204 | 2.404 | |
2009 | 3.039 | 2.664 | |
2010 | 2.906 | 2.425 | |
2011 | 6.4 | 2.58 | 2.558 |
2012 | 6.5 | 2.562 | 2.095 |
2013 | 7.3 | 2.337 | 2.182 |
2014 | 7.2 | 2.313 | 2.116 |
2015 | 7.1 | 1.91 | 1.645 |
2016 | 6.7 | 1.532 | 1.531 |
2017 | 6.7 | 1.519 | 1.562 |
2018 | 6.8 | 1.473 | 1.631 |
2019 | 6.7 | 1.533 | 1.651 |
2020 | 6.5 |
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