大半径 Holstein 极化子与自发对称性破缺问题
其他凝聚态物理
2014-08-05 v2 强关联电子
摘要
找到了一个大半径 Holstein 极化子的平移不变解，其在强耦合极限下的能量低于 Holstein 所得的结果。对应于该解的波函数是离域的。由此得出结论：在所讨论的量子系统中不存在自发对称性破缺。
引用
@article{arxiv.1403.2920,
title = {Large-radius Holstein polaron and the problem of spontaneous symmetry breaking},
author = {V. D. Lakhno},
journal= {arXiv preprint arXiv:1403.2920},
year = {2014}
}
备注
20 pages, 4 figures. Appendix A and references 24, 25, 26 were added. Progress of Theoretical and Experimental Physics, accepted