Secrets of the world's first quantum satellite: how will the changes impact your life world

New in Jiuquan, August 16 (reporter Liang Xiaohui) 16th, China successfully launched the world's first quantum scientific experiment satellites. The ancient Chinese scientist named mo "mo" satellite, with exploration stars mission launched in quantum communication, and cutting-edge technology in the world, China will continue to "explore".

Quantum communication: an unconditional security communication way

Since time immemorial, people for information encryption research never stops. In ancient times, people drop of wax stamped with a watermark on the envelope, but anti-cannot open, read and then recovery. Modern people use electromagnetic waves passing secrets, but the "volume" is low, also can not prevent sophisticated eavesdropping. Today, scientists managed to "volume" down to such a degree: only one photon and any eavesdropper to measure would ruin it, so they may be found. Weak to the limit-quantum information level, even the most careful reading will completely change it, but cannot change a little bit. This is the quantum principle of confidentiality of communications.

"Quantum communication has so far only been proved for unconditional security communication way. Quantum integral, not clones, they are able to ensure encrypted content are not to be broken, can fundamentally guarantee information security, protecting the privacy of all mankind. "Quantum scientific experimental satellite Pan Jianwei said project Chief Scientist, in theory, completely secure communications once, Government, military and banking, and even the whole society will benefit.

Change your life: 15 years after the homes of Chinese people

Pan Jianwei, application prospect in quantum communication, as the popularity of phones, will be gradual, become respectable. "In the beginning, quantum communications could be applied to national defense, finance, Government Affairs, research, then widely used in public. ”

Based on personal judgment, he gives a quantum communication technology popularized, "timeline": about 5 years a lot of confidential Department began 10 years about the financial sector, banks and other large institutions began to use, 15 years ' time perhaps into the thousands. "By then, everyone's home, the phone may have a quantum encryption chip, by bank transfer, or electronic accounts and other secret operations, do not have to worry about theft or attack. ”

He said, this needs to be a process, depend on quantum communication network construction, application costs will gradually decrease.

World: much of the point with China to build "quantum constellation"

Although scientific experiment satellite was successfully launched, but in the long term, "to achieve the quantum communication and globalization is an ongoing effort, especially the need for more satellite network", quantum science experimental satellite application system total Division of the satellite system, Deputy Division Cheng-Zhi Peng said, "it's a journey without end."

As a result, China open welcomes global cooperation. "We are very happy to agree with Austria's request, and together the Beijing-Vienna intercontinental quantum communications experiment in cooperation between China and decided to open the load data", Pan Jianwei said.

He said Germany and Italy also hoped that after Austria joined the Chinese team after the experiments, exploring the world of quantum communication network construction, "quantum constellation" construction in cooperation with the Chinese side. "The agreement has now come to the end of the process, will be signed in the near future. ”

"After all, is the world of science, quantum, China satellite after a walk in the world, can lead the academic community as a whole in the direction of research for human contribution to Chinese wisdom", Pan Jianwei said.

Author: Liang Xiaohui

(Editors: Liu Cheng UN649)
2016-08-16 02:47:38
China News Network

揭秘全球首颗量子卫星：将怎样改变生活影响世界

　　中新社酒泉8月16日电 (记者 梁晓辉)16日凌晨，中国成功发射全球首颗量子科学实验卫星。这颗以中国古代科学家墨子命名的“墨子号”卫星，带着探索星地量子通信的使命升空，将继续为中国和世界的前沿科技“探路”。

　　量子通信：无条件安全的通信方式

　　古往今来，人们对于信息加密的探索从未停止。古时候，人们在信封上滴蜡盖上火印，但仍防不住有人拆开、读完再复原。现代，人们用电磁波传递秘密，但“音量”再低，也防不住精细的窃听。现今，科学家设法将“音量”调低到如此程度：只依靠一颗颗光子，任何窃密者去测量都会破坏它，从而被发现。信息微弱到了极限——量子级别，再小心的读取都会彻底改变它，而不可能只改变一点点。这就是量子通讯的保密原理。

　　“量子通信是迄今唯一被严格证明为无条件安全的通信方式。量子不可分割、不可克隆，所以能保证加密内容不被破译，可以从根本上保障信息安全、保护全人类的隐私。”量子科学实验卫星工程首席科学家潘建伟表示，理论上绝对安全的通信一旦实现，政府、军队和银行，乃至全社会都将获益。

　　改变生活：或15年后走进中国百姓家

　　在潘建伟看来，量子通信的应用前景，就像电话的普及过程一样，将逐步进行，蔚为可观。“一开始，量子通信可能会应用于国防、金融、政务、科学研究等，之后会在大众中广泛应用。”

　　基于个人判断，他给出了一个量子通信技术普及的“时间表”：5年左右很多机要部门开始用，10年左右金融业、银行等大机构开始使用，15年的时间或许走进千家万户。“届时，每个人的家里、手机上或许都会有一个量子加密芯片，银行转款、电子账户等的涉密操作，都不用担心被盗用或者攻击。”

　　他并表示，这需要一个过程，依赖于量子通信网络的建设，应用成本也会逐渐下降。

　　影响世界：多国望与中国共建“量子星座”

　　虽然量子科学实验卫星成功发射，但从长远来看，“要实现全球化量子通信还需要长期的努力，特别是需要多颗卫星的组网”，量子科学实验卫星科学应用系统总师兼卫星系统副总师彭承志表示，“这条征途没有尽头”。

　　也因此，中国以开放的姿态欢迎全球合作。“我们非常高兴地同意了奥地利方的请求，共同就北京到维也纳之间的洲际量子通信进行实验合作，中方并决定向全球开放载荷的相关数据”，潘建伟介绍称。

　　他表示，德国和意大利也非常希望继奥地利后加入中国团队的实验，在探索全球量子通信组网建设、“量子星座”建设中与中方展开合作。“协议目前已经走完了相关的流程，近期就将进行签署。”

　　“毕竟，科学也是面向全世界的，中国的量子卫星走在世界前列之后，可以引领整个学术界在这个方向开展研究，为人类贡献中国智慧”，潘建伟说。

　　作者：梁晓辉

(责任编辑：刘盛钱 UN649)
2016-08-16 02:47:38
中国新闻网