Nuclear Physics B (Dec 2022)

Critical behavior of isotropic systems with strong dipole-dipole interaction: Three-loop study

  • A. Kudlis,
  • A. Pikelner

DOI
https://doi.org/10.1016/j.nuclphysb.2022.115990
Journal volume & issue
Vol. 985
p. 115990

Abstract

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We analyze the critical behavior of isotropic systems with dipole-dipole interaction by renormalization-group methods in fixed space-time dimensions. Working in three-dimensional theory we analytically find three-loop expressions for critical exponents in the limit of dominating dipole-dipole forces. Resummation of the series obtained provides numerical values close to O(3)-theory predictions, justifying the applicability of such a simplified model to systems with strong dipole-dipole interaction.