BCS均场隧挡�幅在零温度下的高斯涨落修正
强关联电子
2007-05-23 v3 超导电性
摘要
计算了弱耦合零温BCS超导导隙方程的主导(高斯)涨落修正。我们发现,主要贡献来自高能和高动量(相对于隧挡而言),给出的修正小于均场项的弱耦合因子 。由于�幅模和相位模在高能和高动量处的奇异贡献相互抵消,该修正较小。
引用
@article{arxiv.cond-mat/0207190,
title = {Gaussian fluctuation corrections to the BCS mean field gap amplitude at zero temperature},
author = {S. Kos and A. J. Millis and A. I. Larkin},
journal= {arXiv preprint arXiv:cond-mat/0207190},
year = {2007}
}
备注
New author added. Incorrect calculations of previous version corrected and conclusions revised Rev 2: New references added, minor misprints corrected