运用这种编码方式的典型代表是一家叫ID Quantique的瑞士公司。
In collaboration with Battelle, an American one, it is building a 700km fibre-optic QKD linkbetween Battelle s headquarters in Columbus, Ohio, and the firm s facilities in and aroundWashington, DC.
在与一家名称巴特尔的美国公司合作过程中,该公司在巴特尔位于俄亥俄州哥伦布市的总部,和该公司在华盛顿特区附近及市区的工厂之间,建立了一条700公里的光纤量子密码的链接。
Battelle will use this to protect its own information and the link will also be hired to otherfirms that want to move sensitive data around.
巴特尔将使用这个光子链接来保护它的自身信息,同时这个链接也会在其它打算频繁交换信息的公司中使用。
QuintessenceLabs, an Australian firm, has a different approach to encoding.
一家名叫QuintessenceLabs的澳大利亚公司的编码方式却不一样。
Instead of tinkering with photons polarities, it changes their phases and amplitudes.
这家公司并没有在光子的极性上做文章,而是改变了它们的相位和振幅。
The effect is the same, though: Eve will necessarily give herself away if she eavesdrops.Using this technology, QuintessenceLabs is building a 560km QKD link between the JetPropulsion Laboratory in Pasadena, California, which organises many of NASA s unmannedscientific missions, and the Ames Research Centre in Silicon Valley, where a lot of theagency s scientific investigations are carried out.
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