The random field Ising chain domain-wall structure in the large interaction limit

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Hauptverfasser: Collin, Orphée, Giacomin, Giambattista, Hu, Yueyun
Format: Preprint
Veröffentlicht: 2024
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author Collin, Orphée
Giacomin, Giambattista
Hu, Yueyun
author_facet Collin, Orphée
Giacomin, Giambattista
Hu, Yueyun
contents We study the configurations of the nearest neighbor Ising ferromagnetic chain with IID centered and square integrable external random field in the limit in which the pairwise interaction tends to infinity. The available free energy estimates for this model show a strong form of disorder relevance, i.e., a strong effect of disorder on the free energy behavior, and our aim is to make explicit how the disorder affects the spin configurations. We give a quantitative estimate that shows that the infinite volume spin configurations are close to one explicit disorder dependent configuration when the interaction is large. Our results confirm predictions on this model obtained in D. S. Fisher, P. Le Doussal and C. Monthus (Phys. Rev. E 2001) by applying the renormalization group method introduced by D. S. Fisher (Phys. Rev. B 1995).
format Preprint
id arxiv_https___arxiv_org_abs_2401_03927
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The random field Ising chain domain-wall structure in the large interaction limit
Collin, Orphée
Giacomin, Giambattista
Hu, Yueyun
Probability
Mathematical Physics
60K37, 82B44, 60K35, 82B27
We study the configurations of the nearest neighbor Ising ferromagnetic chain with IID centered and square integrable external random field in the limit in which the pairwise interaction tends to infinity. The available free energy estimates for this model show a strong form of disorder relevance, i.e., a strong effect of disorder on the free energy behavior, and our aim is to make explicit how the disorder affects the spin configurations. We give a quantitative estimate that shows that the infinite volume spin configurations are close to one explicit disorder dependent configuration when the interaction is large. Our results confirm predictions on this model obtained in D. S. Fisher, P. Le Doussal and C. Monthus (Phys. Rev. E 2001) by applying the renormalization group method introduced by D. S. Fisher (Phys. Rev. B 1995).
title The random field Ising chain domain-wall structure in the large interaction limit
topic Probability
Mathematical Physics
60K37, 82B44, 60K35, 82B27
url https://arxiv.org/abs/2401.03927