Equivalent of a Thouless energy in lattice QCD Dirac spectra

被引：0
|
作者：
Berbenni, ME [1 ]
Guhr, T
Ma, JZ
Meyer, S
Wilke, T
机构：
[1] Univ Kaiserslautern, Fachbereich Phys, D-67663 Kaiserslautern, Germany
[2] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany
[3] Hong Kong Baptist Univ, Hong Kong, Hong Kong, Peoples R China
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2000年 / 83-4卷
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中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Random matrix theory (RMT) is a powerful statistical tool to model spectral fluctuations. In addition, RMT provides efficient means to separate different scales in spectra. Recently RMT has found application in quantum chromodynamics (QCD). In mesoscopic physics, the Thouless energy sets the universal scale for which RMT applies. We try to identify the equivalent of a Thouless energy in complete spectra of the QCD Dirac operator with staggered fermions and SUc(2) lattice gauge fields. Comparing lattice data with RMT predictions we find deviations which allow us to give an estimate for this scale.
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页码：914 / 916
页数：3
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