Fluctuation of the phase boundary in the six-vertex model with domain wall boundary conditions: a Monte Carlo study

Abstract We consider the six-vertex model with domain wall boundary conditions in a square lattice of dimension N × N . Our main interest is the study of the fluctuations of the extremal lattice path about the arctic curves. We address the problem through Monte Carlo simulations. At <?CDATA $\Del...

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Bibliographic Details
Published in:Journal of Physics A: Mathematical and Theoretical
Main Authors: Lyberg, Ivar, Korepin, Vladimir, Viti, Jacopo
Format: Article in Journal/Newspaper
Language:unknown
Published: IOP Publishing 2023
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Online Access:http://dx.doi.org/10.1088/1751-8121/ad0a43
https://iopscience.iop.org/article/10.1088/1751-8121/ad0a43
https://iopscience.iop.org/article/10.1088/1751-8121/ad0a43/pdf
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Summary:Abstract We consider the six-vertex model with domain wall boundary conditions in a square lattice of dimension N × N . Our main interest is the study of the fluctuations of the extremal lattice path about the arctic curves. We address the problem through Monte Carlo simulations. At <?CDATA $\Delta = 0$?> Δ = 0 , the fluctuations of the extremal path along any line parallel to the square diagonal were rigorously proven to follow the Tracy-Widom distribution. We provide strong numerical evidence that this is true also for other values of the anisotropy parameter Δ ( <?CDATA $0\unicode{x2A7D} \Delta \lt 1$?> 0 ⩽ Δ < 1 ). We argue that the typical width of the fluctuations of the extremal path about the arctic curves scales as <?CDATA $N^{1/3}$?> N 1 / 3 and provide a numerical estimate for the parameters of the scaling random variable.