Holstein 模型中的平移不变双极化子与超导性
其他凝聚态物理
2017-02-03 v2
摘要
本文在一维 Holstein 分子链中考虑大半径平移不变（TI）双极化子，得到了其稳定性判据。结果表明，平移不变双极化子的能量低于对称性破缺的双极化子。所得结果被应用于一维系统中的超导性问题。研究表明，玻色-爱因斯坦凝聚的 TI 双极化子机制即使在无限长链中也能支持超导性。
关键词
引用
@article{arxiv.1606.02219,
title = {A translation invariant bipolaron in the Holstein model and superconductivity},
author = {Victor Lakhno},
journal= {arXiv preprint arXiv:1606.02219},
year = {2017}
}
备注
20 pages, 7 figures. This version contains essentially new results in comparison with v1. The Abstract is enlarged, the Introduction is improved. Four sections are added. This version was published in SpringerPlus (2016) 5:1277, here Table 1 is corrected