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KIAM Preprint  104, Moscow, 2019
Authors: Ivanov A. V.
Calculation of the statistical sum and approximation of multiparticle distribution functions for magnetics in the Heisenberg model
In this paper, we have constructed a direct semianalytical method for calculating the statistical sum for magnetics in the framework of the Heisenberg model, based on approximation by the exponential of a single integral over the sphere. The calculation results are in good agreement with the atomistic simulation results at least for high temperatures, while the algorithmic complexity of the method is no worse than O(N7/3).
the statistical sum, multiparticle distribution functions, modeling of magnetics
Publication language: russian,  pages: 12
Research direction:
Mathematical modelling in actual problems of science and technics
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About authors:
  • Ivanov Anton Valerievich, RAS