Origins of the Ising model

Fuente: arXiv
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1. Verfasser: de Oliveira, Mário J.
Format: Preprint
Veröffentlicht: 2025
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author de Oliveira, Mário J.
author_facet de Oliveira, Mário J.
contents In 1925, Ernest Ising published a paper analyzing a model proposed in 1920 by Wilhelm Lenz for ferromagnetism. The model is composed of constituent units that take only two states and interact only when they are neighbors. Ising showed that in a linear chain the model does not present an ordered ferromagnetic state, a frustrating but correct result. However, Rudolf Peierls demonstrated in 1936 that the model does in fact present an ordered state in two dimensions, and therefore in three dimensions. This result reveals that short-range interaction and only two states for each constituent unit are sufficient for ordering to occur over long distances. These two elements are the key to understanding the success of the model and its variants even a hundred years after its appearance. Here we analyze the emergence of the model in the period up to 1936.
format Preprint
id arxiv_https___arxiv_org_abs_2509_00632
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Origins of the Ising model
de Oliveira, Mário J.
History and Philosophy of Physics
In 1925, Ernest Ising published a paper analyzing a model proposed in 1920 by Wilhelm Lenz for ferromagnetism. The model is composed of constituent units that take only two states and interact only when they are neighbors. Ising showed that in a linear chain the model does not present an ordered ferromagnetic state, a frustrating but correct result. However, Rudolf Peierls demonstrated in 1936 that the model does in fact present an ordered state in two dimensions, and therefore in three dimensions. This result reveals that short-range interaction and only two states for each constituent unit are sufficient for ordering to occur over long distances. These two elements are the key to understanding the success of the model and its variants even a hundred years after its appearance. Here we analyze the emergence of the model in the period up to 1936.
title Origins of the Ising model
topic History and Philosophy of Physics
url https://arxiv.org/abs/2509.00632