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Hard Rod Hydrodynamics and the Levy Chentsov Field
Pablo A. Ferrari, Chiara Franceschini, Dante G. E. Grevino, Herb · 2022-11-21 · via math.PR updates on arXiv.org

We study the hydrodynamics of the hard rod model proposed by Boldrighini, Dobrushin and Soukhov by describing the displacement of each quasiparticle with respect to the corresponding ideal gas particle as a height difference in a related field. Starting with a family of nonhomogeneous Poisson processes contained in the position-velocity-length space $\mathbb{R}^3$, we show laws of large numbers for the quasiparticle positions and the length fields, and the joint convergence of the quasiparticle fluctuations to a Levy Chentsov field. We allow variable rod lengths, including negative lengths.

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