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台媒:大陆建成全球首条量子通信线路 领先世界

2017-09-07 01:59:20   参考消息网

2016年8月16日全球首颗量子科学实验卫星“墨子号”,在酒泉卫星发射中心成功发射后,如今大陆将在世界上首次实现卫星和地面间的量子通信。

报道称,京沪干线北京接入点将与“墨子号”量子科学实验卫星兴隆地面站连接,全线密钥率大于5kbps,已形成星地一体的广域量子通信网络雏形,大大扩展了京沪干线应用能力。

报道称,欧美国家近年来也积极规划量子通信网,在大陆“京沪干线”通过总技术验收后,意味着世界首条量子保密通信骨干线路已具备开通条件,大陆在量子技术的实用化和产业化也继续领先全球。

预计在不久的将来,量子通信技术将应用于金融、政务、军事等领域资讯的安全传输。专家指出,随着量子通信在都会区网络、城际网络、广域网络全面展开,量子通信的应用领域将推广到个人生活,到2030年,量子通信市场有望达到千亿元人民币产值。

报道称,Quantum Key Distribution,简称QKD(量子密码通信),最重要也最独特的性质是:如果有第三方试图窃听密码,就必须用某种方式测量它,而这些测量会带来可察觉的异常,通讯的双方便能察觉。主因是任何对量子系统的测量都会对系统产生干扰。透过量子叠加态或量子缠结态来传输资讯,通讯系统便可以检测是否存在窃听。

责任编辑:穆启春 CN063、陈倩 CN030
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