Level-Spacing Distributions and the Bessel Kernel

Abstract

The level spacing distributions which arise when one rescales the Laguerre or Jacobi ensembles of hermitian matrices is studied. These distributions are expressible in terms of a Fredholm determinant of an integral operator whose kernel is expressible in terms of Bessel functions of order $\alpha$. We derive a system of partial differential equations associated with the logarithmic derivative of this Fredholm determinant when the underlying domain is a union of intervals. In the case of a single interval this Fredholm determinant is a Painleve tau function.

18 pages, resubmitted to make postscript compatible, no changes to manuscript content

References in corpus (2)

• Level-Spacing Distributions and the Airy Kernel
• Introduction to Random Matrices

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