【精听】听力练习day12

The business of quantum computers Uncertainty principals(不确定性原理)

        Big stable Quantum Computer would be an useful device with large commercial interest[1]. Due to the counter-intuitive properties of quantum mechanics, quantum computers have absolute obvious advantages to some calculations over non-quantum machine[2]. One is specific tasks, like precise simulating, which could even deal with intractable work. Therefore, quantum computers  would help improve the development  of drugs, catalysts(催化剂) and batteries[3]. Besides, they can speed up the analysis of optimisation problems[4], which could benefit transport industry and finance[5]. A management consultancy has predicted that once big stable quantum computers come to birth by 2050, it would bring large operating income for companies[6]. The existing quantum computers like NISQS-Noisy, literally small ornery unstable, would be the stepping stone for the goal of big stable ones. [7]Companies now is hunting for 'quantum advantage' which is the key to profits.[8]

be characterized by... / feature sth  以……为特征

counter-intuitive properties of quantum mechanics  量子力学的反直觉特性

by exploiting sth 借助于……

quantum mechanics   量子力学

conceivable   adj. 可想象的；可信的that you can imagine or believe

have an/the advantage over     比(某人)强；胜过；优于

Precisely simulating     精确模拟

all but    na.几乎跟…一样

intractable   adj.    很难对付（或处理）的very difficult to deal with

boon   n. 非常有用的东西；益处  ~ (to/for sb)  something that is very helpful and makes life easier for you

ornery   adj.   脾气暴躁的；难对付的；别扭的bad-tempered and difficult to deal with

dub  v.    1.~ sb + noun  把…戏称为；给…起绰号to give sb/sth a particular name, often in a humorous or critical way

            2.~ sth (into sth)  为（影片或电视节目）配音；译制to replace the original speech in a film/movie or television programme with words in another language

        3.~ sth  混声录制，混录（音乐）to make a piece of music by mixing sounds from different recordings

have an impact on

[1]Quantum computing is attracting commercial interest. Big, stable quantum computers would be useful devices .大型、稳定的量子计算机将 拥有可观的用武之地 。

For one thing, they would probably be much more rapid than any classical computer at searching a database - an elemental operation with a thousand uses(有着丰富用途的一种基本操作) . They would be quicker at more specific tasks(细节任务) , too.

[3]A quantum computer could do this,  aiding the development of drugs, catalysts(催化剂) and batteries .

[4]Quantum computers would also speed up the analysis of optimisation problems, which try to find the best way to juggle many variables in order to maximise a particular outcome.量子计算机还能加速优化问题的分析环节，优化问题指的就是试图找出最佳方法调控多个变量，以最大化特定结果这类问题。

 [5]That would be a boon to the transport industry(by finding efficient routes)and to finance(by maximising profits given a set of constraints).

[6]Boston Consulting Group (BCG),a management consultancy, foresees quantum computers improving the operating income(运营收入) of their users by between $450bn and $850bn a year by 2050.Unfortunately,big,stable quantum computers do not yet exist.

[7]But small, ornery, unstable ones do.John Preskill, a quantum-computing researcher at the California Institute of Technology, dubs such machines NISQS-Noisy, Intermediate-Scale Quantum computers. Some see NISQS as mere stepping stones towards size and stability, and that is certainly the goal of those working on them.

[8]A growing number of companies and investors, however, are hopeful that NISQS themselves will be able to do useful work in the meantime. These firms are hunting for " quantum advantage "- a way in which even today's limited machines might have an impact on their bottom lines, or those of their customers.