DECIMATION ALGORITHM FOR THE STATISTICS OF ENERGY-LEVELS

被引：8

作者：

BATSCH, M ^{[1
]}

ZHAREKESHEV, IK ^{[1
]}

KRAMER, B ^{[1
]}

机构：

[1] PHYS TECH BUNDESANSTALT,D-38116 BRAUNSCHWEIG,GERMANY

来源：

SOLID STATE COMMUNICATIONS | 1995年 / 95卷 / 06期

关键词：

DISORDERED SYSTEMS; ELECTRONIC STATES (LOCALIZED); QUANTUM LOCALIZATION;

D O I：

10.1016/0038-1098(95)00288-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We propose a new numerical method for the analysis of the statistical properties of the electron spectra of random systems at a given energy. By applying a decimation transformation to the two-dimensional Anderson model with diagonal disorder, the level spacing distribution at the band center is calculated for system sizes up to 1024 x 1024 lattice sites. The results show a crossover from the Wigner to the Poisson statistics when increasing the system size.

引用

页码：353 / 356

页数：4

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