BCS Superconductivity with Fixed Number Parity
凝聚态物理
2009-10-22 v1
摘要
We investigate superconductivity in a grand canonical ensemble with {\it fixed number parity} (even or odd). In the low temperature limit we find small corrections to the BCS gap equation and energy spectrum . The even-odd free energy difference in the same limit decreases linearly with temperature, in accordance with the behavior observed experimentally and previously arrived at from a quasiparticle model. The theory yields deviations from the BCS predictions for the specific heat, ultrasound attenuation, NSR relaxation rate, and electromagnetic absorption.
引用
@article{arxiv.cond-mat/9402113,
title = {BCS Superconductivity with Fixed Number Parity},
author = {Boldizsar Janko and Anders Smith and Vinay Ambegaokar},
journal= {arXiv preprint arXiv:cond-mat/9402113},
year = {2009}
}
备注
17 pages (no figures), RevTeX version 3.0