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arXiv · 2212.02117

Pair correlation function of the one-dimensional Riesz gas

C. W. J. Beenakker
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Abstract

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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BibTeXRIS

C. W. J. Beenakker. 2022-12-05. Pair correlation function of the one-dimensional Riesz gas. https://doi.org/10.1103/physrevresearch.5.013152

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