SPECTRAL STATISTICS BEYOND RANDOM-MATRIX THEORY

被引：117

作者：

ANDREEV, AV ^{[1
]}

ALTSHULER, BL ^{[1
]}

机构：

[1] MIT,DEPT PHYS,CAMBRIDGE,MA 02139

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.75.902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a nonperturbative approach we examine the large frequency asymptotics of the two-point level density correlator in weakly disordered metallic grains. We find that the singularities of the structure factor at the Heisenberg time (present for random matrix ensembles) are washed out when conductance is finite. The results are nonuniversal (they depend on the shape of the grain and on its conductance), though they suggest a generalization for any system with finite Heisenberg time.

引用

页码：902 / 905

页数：4

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