有限团簇计算到无穷体积的外推——这些外推有多正确?
凝聚态物理
2007-05-23 v1
摘要
从有限团簇计算获得的数值数据外推到无穷体积极限常常会给出不正确的结果。我们讨论了四种情况:(a)无限多烯中最低双光子吸收强度,(b)无限多烯中的键交替,(c)简单Hubbard模型中的Cooper型配对,以及(d)扩展Hubbard模型中的配对。
引用
@article{arxiv.cond-mat/9303003,
title = {Infinite Volume Extrapolations of Finite Cluster Calculations, ---How Correct are These?},
author = {S. Mazumdar and F. Guo and D. Guo and K. -C. Ung and J. Tinka Gammel},
journal= {arXiv preprint arXiv:cond-mat/9303003},
year = {2007}
}
备注
13 pages, in TeX, 9 figures (available upon request from the authors: [email protected]). To appear in the Proceedings of the Discussion Meeting on Strongly Correlated Systems in Chemistry, Bangalore, India, 4-8 January 1993