arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0912.2235cond-mat.mes-hallcond-mat.str-el
收藏

超导体-量子点-正常金属结构中近藤区的噪声

Noise in superconductor-quantum dot-normal metal structures in the Kondo regime

Pierre Devillard, Adeline Crépieux

摘要:

我们考虑了一个N点S结在近藤制度的限制,其中超导能隙是远远小于近藤温度。提出了一种推广的近藤共振的浮动和许多平均子间隙电流的体修正计算。计算零频率噪声,并且对于低于间隙的所有电压,Fano因子保持为值10/3。有限频率噪声的影响进行了简要讨论。

英文摘要:

We consider a N-dot-S junction in the Kondo regime in the limit where the superconducting gap is much smaller than the Kondo temperature. A generalization of the floating of the Kondo resonance is proposed and many body corrections to the average subgap current are calculated. The zero frequency noise is computed and the Fano factor sticks to the value 10/3 for all voltages below the gap. Implications for finite frequency noise are briefly discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑