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arXiv 1003.4222math-phhep-thmath.MPmath.PR
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酉手征非Hermitian随机矩阵系综的Airy和Poisson统计量之间的插值

Interpolation between Airy and Poisson statistics for unitary chiral non-Hermitian random matrix ensembles

Gernot Akemann, Martin Bender

摘要:

我们考虑一族酉不变对称类的手征非厄米特高斯随机矩阵。该模型的特征值分布用复平面上的拉盖尔多项式表示。这些是正交的非高斯权重,包括修改的贝塞尔函数的第二类,我们给出了一个初等的证明。在大的$n$限制,在接近实轴的频谱边缘的特征值统计描述的爱里和泊松,最近发现的作者之一的椭圆Ginibre合奏之间的插值内核相同的家庭。我们的结论是,这种缩放限制是普遍的,出现两个不同的非厄米随机矩阵合奏酉对称。作为第二个结果,我们给出了一个等价形式的插值艾里内核在一个单一的实积分,类似于陈述的渐近内核在散装和在硬边缘的频谱。这使得它作为Airy核的单参数变形的结构更加透明。

英文摘要:

We consider a family of chiral non-Hermitian Gaussian random matrices in the unitarily invariant symmetry class. The eigenvalue distribution in this model is expressed in terms of Laguerre polynomials in the complex plane. These are orthogonal with respect to a non-Gaussian weight including a modified Bessel function of the second kind, and we give an elementary proof for this. In the large $n$ limit, the eigenvalue statistics at the spectral edge close to the real axis are described by the same family of kernels interpolating between Airy and Poisson that was recently found by one of the authors for the elliptic Ginibre ensemble. We conclude that this scaling limit is universal, appearing for two different non-Hermitian random matrix ensembles with unitary symmetry. As a second result we give an equivalent form for the interpolating Airy kernel in terms of a single real integral, similar to representations for the asymptotic kernel in the bulk and at the hard edge of the spectrum. This makes its structure as a one-parameter deformation of the Airy kernel more transparent.

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