One-Dimensional Continuum Electronic Structure with the Density-Matrix Renormalization Group and Its Implications for Density-Functional Theory

被引：78

作者：

Stoudenmire, E. M. ^{[1
]}

Wagner, Lucas O. ^{[1
]}

White, Steven R. ^{[1
]}

Burke, Kieron ^{[1
,2
]}

机构：

[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[2] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 05期

关键词：

CORRELATED SYSTEMS;

D O I：

10.1103/PhysRevLett.109.056402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We extend the density matrix renormalization group to compute exact ground states of continuum many-electron systems in one dimension with long-range interactions. We find the exact ground state of a chain of 100 strongly correlated artificial hydrogen atoms. The method can be used to simulate 1D cold atom systems and to study density-functional theory in an exact setting. To illustrate, we find an interacting, extended system which is an insulator but whose Kohn-Sham system is metallic.

引用

页数：5

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