Finite-Size Scaling and Universality above the Upper Critical Dimensionality
- 4 March 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 76 (10), 1557-1561
- https://doi.org/10.1103/physrevlett.76.1557
Abstract
According to renormalization theory, Ising systems above their upper critical dimensionality have classical critical behavior and the ratio of magnetization moments has the universal value . However, Monte Carlo simulations of Ising models have been reported which yield strikingly different results, suggesting that the renormalization scenario is incorrect. We investigate this issue by simulation of a more general model in which , and a careful analysis of the corrections to scaling. Our results are in perfect agreement with the renormalization theory and provide an explanation of the discrepancy mentioned.
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