NP-FRG computation shows the quantum RFIM has activated dynamics ln τ ~ ξ^Ψ at T=0, with Ψ set by classical RFIM static exponents and bare kernel exponent σ, crossing over to thermal activation at finite T.
Experiments on the random field Ising model
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abstract
New advances in experiments on the random-field Ising model, as realized in dilute antiferromagnets, have brought us much closer to a full characterization of the static and dynamic critical behavior of the unusual phase transition in three dimensions (d=3). The most important experiments that have laid the ground work for our present understanding are reviewed. Comparisons of the data with Monte Carlo simulations of the d=3 critical behavior are made. We review the current experimental understanding of the destroyed d=2 transition and the experiments exploring the d=2 metastability at low T. Connections to theories most relevant to the interpretations of all the experiments are discussed.
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cond-mat.dis-nn 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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Activated dynamics in the quantum random field Ising model
NP-FRG computation shows the quantum RFIM has activated dynamics ln τ ~ ξ^Ψ at T=0, with Ψ set by classical RFIM static exponents and bare kernel exponent σ, crossing over to thermal activation at finite T.