Direct sum of Coulomb potential without ambiguities of conditionally convergent series

被引:10
作者
Takemoto, H [1 ]
Ohyama, T [1 ]
Tohsaki, A [1 ]
机构
[1] Shinshu Univ, Dept Fine Mat Engn, Ueda, Nagano 3868567, Japan
来源
PROGRESS OF THEORETICAL PHYSICS | 2003年 / 109卷 / 04期
关键词
D O I
10.1143/PTP.109.563
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We propose a definitive expression to evaluate electrostatic energies under periodic conditions, starting from the Yukawa potential with a finite range and summing up positive and negative contributions separately. We find a dimension-dependent function that can be used to solve problems concerning divergences and ambiguities in the direct sum of Coulomb potentials. The infinite-range limit of this function leads to a universal constant independent of lattice structure, which reveals the origin of ambiguities from conditionally convergent series in the sum of Coulomb potentials.
引用
收藏
页码:563 / 573
页数:11
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