量子卫星装置与全球量子网络-凯发k8官网

量子卫星装置与全球量子网络

文章来源：未知文章作者：enread 发布时间：2016-06-03 08:15 字体： [ ]　

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you can't sign up for the quantum internet just yet, but researchers have reported a major experimental ¹ towards building a global quantum network - and it's happening in space. with a network that carries information in the quantum properties of single particles, you can create secure keys for secret messaging and potentially connect powerful quantum computers in the future. but scientists think you will need equipment in space to get global reach.

researchers from the national university of singapore (nus) and the university of strathclyde, uk, have become the first to test in orbit technology for satellite-based quantum network nodes.

they have put a compact device carrying ² used in quantum communication and ³ into orbit. and it works: the team report first data in a paper published 31 may 2016 in the journal physical review ⁴.

the team's device ⁵ speqs creates and measures pairs of light particles, called photons. results from space show that speqs is making pairs of photons with correlated properties - an ⁶ of performance.

team-leader alexander ling, an assistant professor at the centre for quantum technologies (cqt) at nus, said "this is the first time anyone has tested this kind of quantum technology in space."

the team had to be inventive to redesign a delicate, table-top quantum setup to be small and ⁷ enough to fly inside a nanosatellite only the size of a shoebox. the whole satellite weighs just 1.65-kilogramme.

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收听单词发音

1
n.里程碑；划时代的事件
参考例句：
the film proved to be a milestone in the history of cinema.事实证明这部影片是电影史上的一个里程碑。 i think this is a very important milestone in the relations between our two countries.我认为这是我们两国关系中一个十分重要的里程碑。

2
（机器、设备等的）构成要素，零件，成分；成分( component的名词复数 )； [物理化学]组分； [数学]分量；（混合物的）组成部分
参考例句：
the components of a machine 机器部件 our chemistry teacher often reduces a compound to its components in lab. 在实验室中化学老师常把化合物分解为各种成分。

3
n.计算
参考例句：
to work in computing 从事信息处理 back in the dark ages of computing, in about 1980, they started a software company. 早在计算机尚未普及的时代（约1980年），他们就创办了软件公司。

4
adj.应用的；v.应用，适用
参考例句：
she plans to take a course in applied linguistics.她打算学习应用语言学课程。 this cream is best applied to the face at night.这种乳霜最好晚上擦脸用。

5
v.给…起绰号( dub的过去式和过去分词 )；把…称为；配音；复制
参考例句：
mathematics was once dubbed the handmaiden of the sciences. 数学曾一度被视为各门科学的基础。 is the movie dubbed or does it have subtitles? 这部电影是配音的还是打字幕的？来自《简明英汉词典》

6
n.指标；指示物，指示者；指示器
参考例句：
gold prices are often seen as an indicator of inflation.黃金价格常常被看作是通货膨胀的指标。 his left-hand indicator is flashing.他左手边的转向灯正在闪亮。

7
adj.强壮的，强健的，粗野的，需要体力的，浓的
参考例句：
she is too tall and robust.她个子太高，身体太壮。 china wants to keep growth robust to reduce poverty and avoid job losses,ap commented.美联社评论道，中国希望保持经济强势增长，以减少贫困和失业状况。