Density of States for Random Band Matrices in Two Dimensions

Density of States for Random Band Matrices in Two Dimensions
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二维随机能带矩阵的态密度

DOI:
10.1007/s00023-017-0572-3
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发表时间:
2016
期刊:
Annales Henri Poincaré
影响因子:
--
通讯作者:
M. Lager
M. Lager
中科院分区:
--
文献类型:
--
作者:
M. Disertori;M. Lager

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我们考虑一个二维随机带系综,在无限大体积和固定的大带宽W的极限下。对于这个模型,我们严格证明了平均态密度的光滑性。我们还证明了所得到的表达式符合Wigner的周期律,精度为$$W^{-2+\delta },$$W-2+δ,其中当$$W\rightarrow \infty .$$时,$$\delta \rightarrow 0$$δ→0。W→∞。该证明使用超对称方法,并将Disertori等人的结果(Commun Math Phys 232(1):83-124,2002)从三维扩展到二维。
We consider a two-dimensional random band matrix ensemble, in the limit of infinite volume and fixed but large band width W. For this model, we rigorously prove smoothness of the averaged density of states. We also prove that the resulting expression coincides with Wigner’s semicircle law with a precision $$W^{-2+\delta },$$W-2+δ, where $$\delta \rightarrow 0$$δ→0 when $$W\rightarrow \infty .$$W→∞. The proof uses the supersymmetric approach and extends results by Disertori et al. (Commun Math Phys 232(1):83–124, 2002) from three to two dimensions.
不变随机矩阵系综的超玻色化
DOI: 10.1007/s00220-008-0535-0
发表时间: 2008
影响因子: 2.4
作者:
P. Littelmann;H.-J. Sommers;M.R. Zirnbauer
通讯作者: M.R. Zirnbauer