...
首页> 外文期刊>Physical review >Thermally Activated Phase Slips In Superconducting Nanowires
【24h】

Thermally Activated Phase Slips In Superconducting Nanowires

机译:超导纳米线中的热活化相移

获取原文
获取原文并翻译 | 示例
           

摘要

We reanalyze the problem of thermally activated phase slips (TAPS) which can dominate the behavior of sufficiently thin superconducting wires at temperatures close to T_C. With the aid of an effective action approach we evaluate the TAPS rate which turns out to exceed the rate found by McCumber and Halperin, Phys. Rev. B 1, 1054 (1970) within the time-dependent Ginzburg-Landau analysis by the factor ~(1-T/T_C)~(-1)>>1. Additional differences in the results of these two approaches arise at bias currents close to the Ginzburg-Landau critical current where the TAPS rate becomes bigger. We also derive a simple formula for the voltage noise across the superconducting wire in terms of the TAPS rate. Our results can be verified in modern experiments with superconducting nanowires.
机译:我们重新分析了热激活相移(TAPS)的问题,该问题可以控制温度接近T_C的足够细的超导线的行为。借助有效的行动方法,我们评估了TAPS速率,结果证明该速率超过了McCumber和Halperin,Phys发现的速率。 Rev. B 1,1054(1970)在随时间变化的Ginzburg-Landau分析中,因子为〜(1-T / T_C)〜(-1)>> 1。在偏置电流接近金兹堡-兰道临界电流的地方,TAPS速率变大,这两种方法的结果会产生其他差异。我们还根据TAPS速率推导了超导线两端的电压噪声的简单公式。我们的结果可以在超导纳米线的现代实验中得到验证。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号