论文标题

一维riesz气体的配对相关函数

Pair correlation function of the one-dimensional Riesz gas

论文作者

Beenakker, C. W. J.

论文摘要

从随机矩阵理论中的一种方法用于计算$ n \ gg 1 $的一维气体的配对相关函数,具有功率定律的拒绝相互作用潜在的$ u(x)\ propto | x |^{ - s} $(socalled riesz ass as sopalled riesz ass as)。获得了单粒子操作员协方差的整体公式,该公式将在限制$ s \ rightarrow -1 $(库仑气)和$ s \ rightarrow 0 $(log-gas)中概括为已知结果。作为应用程序,我们计算了Riesz气体质量中心的方差,该质量具有通用的较大$ n $限制,不取决于限制电位的形状。

A method from random-matrix theory is used to calculate the pair correlation function of a one-dimensional gas of $N\gg 1$ classical particles with a power law repulsive interaction potential $u(x)\propto |x|^{-s}$ (a socalled Riesz gas). An integral formula for the covariance of single-particle operators is obtained which generalizes known results in the limits $s\rightarrow -1$ (Coulomb gas) and $s\rightarrow 0$ (log-gas). As an application, we calculate the variance of the center of mass of the Riesz gas, which has a universal large-$N$ limit that does not depend on the shape of the confining potential.

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