超导百年

发自芝加哥——世界首台“量子”计算机——一台利用量子现象的魔力来构成记忆体且任务执行速度远远高于当前使用的硅芯片的机器——最近由加拿大的D-Wave系统公司出售给洛克希德-马丁公司。与此同时,当人们开始质疑这台量子计算机的真伪时,其设计者在权威专业杂志上发表文章,阐述了构成这台崭新计算机的基本元素其实就是超导的量子位。

此举也成为了超导现象100周年纪念的标志性事件。所谓超导,就是物质携带电流却不造成损失的能力。超导线中的电流可以存在数年都不出现可测量的衰减。

这种特性使得超导体拥有了可供多方面利用的独有特征。它们可以携带巨量电流,非常适用于城市电网,而被卷成线圈时又能制造出极其强大的磁场。

To continue reading, please log in or enter your email address.

Registration is quick and easy and requires only your email address. If you already have an account with us, please log in. Or subscribe now for unlimited access.

required

Log in

http://prosyn.org/QOt1laK/zh;
  1. Patrick Kovarik/Getty Images

    The Summit of Climate Hopes

    Presidents, prime ministers, and policymakers gather in Paris today for the One Planet Summit. But with no senior US representative attending, is the 2015 Paris climate agreement still viable?

  2. Trump greets his supporters The Washington Post/Getty Images

    Populist Plutocracy and the Future of America

    • In the first year of his presidency, Donald Trump has consistently sold out the blue-collar, socially conservative whites who brought him to power, while pursuing policies to enrich his fellow plutocrats. 

    • Sooner or later, Trump's core supporters will wake up to this fact, so it is worth asking how far he might go to keep them on his side.
  3. Agents are bidding on at the auction of Leonardo da Vinci's 'Salvator Mundi' Eduardo Munoz Alvarez/Getty Images

    The Man Who Didn’t Save the World

    A Saudi prince has been revealed to be the buyer of Leonardo da Vinci's "Salvator Mundi," for which he spent $450.3 million. Had he given the money to the poor, as the subject of the painting instructed another rich man, he could have restored eyesight to nine million people, or enabled 13 million families to grow 50% more food.

  4.  An inside view of the 'AknRobotics' Anadolu Agency/Getty Images

    Two Myths About Automation

    While many people believe that technological progress and job destruction are accelerating dramatically, there is no evidence of either trend. In reality, total factor productivity, the best summary measure of the pace of technical change, has been stagnating since 2005 in the US and across the advanced-country world.

  5. A student shows a combo pictures of three dictators, Austrian born Hitler, Castro and Stalin with Viktor Orban Attila Kisbenedek/Getty Images

    The Hungarian Government’s Failed Campaign of Lies

    The Hungarian government has released the results of its "national consultation" on what it calls the "Soros Plan" to flood the country with Muslim migrants and refugees. But no such plan exists, only a taxpayer-funded propaganda campaign to help a corrupt administration deflect attention from its failure to fulfill Hungarians’ aspirations.

  6. Project Syndicate

    DEBATE: Should the Eurozone Impose Fiscal Union?

    French President Emmanuel Macron wants European leaders to appoint a eurozone finance minister as a way to ensure the single currency's long-term viability. But would it work, and, more fundamentally, is it necessary?

  7. The Year Ahead 2018

    The world’s leading thinkers and policymakers examine what’s come apart in the past year, and anticipate what will define the year ahead.

    Order now