Schrödinger-invariance in the voter model

Fuente: arXiv
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Main Authors: Henkel, Malte, Stoimenov, Stoimen
Format: Preprint
Published: 2025
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author Henkel, Malte
Stoimenov, Stoimen
author_facet Henkel, Malte
Stoimenov, Stoimen
contents Exact single-time and two-time correlations and the two-time response function are found for the order-parameter in the voter model with nearest-neighbour interactions. Their explicit dynamical scaling functions are shown to be continuous functions of the space dimension $d>0$. Their form reproduces the predictions of non-equilibrium representations of the Schrödinger algebra for models with dynamical exponent ${z}=2$ and with the dominant noise-source coming from the heat bath. Hence the ageing in the voter model is a paradigm for relaxations in non-equilibrium critical dynamics, without detailed balance, and with the upper critical dimension $d^*=2$.
format Preprint
id arxiv_https___arxiv_org_abs_2509_11654
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Schrödinger-invariance in the voter model
Henkel, Malte
Stoimenov, Stoimen
Statistical Mechanics
High Energy Physics - Theory
Mathematical Physics
Exact single-time and two-time correlations and the two-time response function are found for the order-parameter in the voter model with nearest-neighbour interactions. Their explicit dynamical scaling functions are shown to be continuous functions of the space dimension $d>0$. Their form reproduces the predictions of non-equilibrium representations of the Schrödinger algebra for models with dynamical exponent ${z}=2$ and with the dominant noise-source coming from the heat bath. Hence the ageing in the voter model is a paradigm for relaxations in non-equilibrium critical dynamics, without detailed balance, and with the upper critical dimension $d^*=2$.
title Schrödinger-invariance in the voter model
topic Statistical Mechanics
High Energy Physics - Theory
Mathematical Physics
url https://arxiv.org/abs/2509.11654