V2EX josephson junction

Josephson Junction

释义(中文)Definition

约瑟夫森结:由两块超导体之间夹着一层极薄的绝缘层或弱连接(weak link)形成的器件。它允许无电阻的超导电流通过,并呈现约瑟夫森效应(如随相位差变化的超导电流、在外加电压下产生高频振荡等)。常用于 SQUID 磁强计电压标准、以及超导量子比特等。

发音(IPA)Pronunciation

/dosfsn dkn/

例句(英/中)Examples

A Josephson junction can switch extremely fast.
约瑟夫森结的开关速度可以非常快。

By biasing the Josephson junction and applying microwave radiation, the experiment revealed Shapiro steps in the IV curve.
通过对约瑟夫森结加偏置并施加微波辐射,实验在电流电压曲线上观察到了夏皮罗台阶。

词源(中文)Etymology

Josephson 来自物理学家 Brian D. Josephson(布赖恩约瑟夫森) 的姓氏,他在 1962 年提出相关理论并预言了超导弱连接中的量子隧穿现象;junction 意为“连接处/结”,源自拉丁语词根 iungere(连接、结合)。合起来指“约瑟夫森提出并研究的那类超导连接结构”

相关词(英)Related Words

文献与著作中的出现(中文)Notable Works

  • Brian D. Josephson, “Possible new effects in superconductive tunnelling”(1962,提出约瑟夫森效应的经典论文)
  • Michael Tinkham, Introduction to Superconductivity(《超导导论》,系统讲解约瑟夫森结与应用)
  • Antonio Barone & Gianfranco Paternò, Physics and Applications of the Josephson Effect(约瑟夫森效应的权威专著)
  • John Clarke & Alex I. Braginski (eds.), The SQUID Handbook(SQUID 与约瑟夫森结在高灵敏磁测量中的应用)
  • Michel H. Devoret & John M. Martinis 等相关综述/教材(超导电路与量子计算中对约瑟夫森结的核心使用)
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